http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/operators/hipchat_operator.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/operators/hipchat_operator.py 
b/airflow/contrib/operators/hipchat_operator.py
index d82ad61..9bb43f1 100644
--- a/airflow/contrib/operators/hipchat_operator.py
+++ b/airflow/contrib/operators/hipchat_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 
 from builtins import str
 

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/operators/hive_to_dynamodb.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/operators/hive_to_dynamodb.py 
b/airflow/contrib/operators/hive_to_dynamodb.py
index 5c7bb8e..31cca7c 100644
--- a/airflow/contrib/operators/hive_to_dynamodb.py
+++ b/airflow/contrib/operators/hive_to_dynamodb.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 
 import json
 

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/operators/jenkins_job_trigger_operator.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/operators/jenkins_job_trigger_operator.py 
b/airflow/contrib/operators/jenkins_job_trigger_operator.py
index 5227b24..33d602e 100644
--- a/airflow/contrib/operators/jenkins_job_trigger_operator.py
+++ b/airflow/contrib/operators/jenkins_job_trigger_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 
 import time
 import socket

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/operators/jira_operator.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/operators/jira_operator.py 
b/airflow/contrib/operators/jira_operator.py
index 6623b1c..d18f5e5 100644
--- a/airflow/contrib/operators/jira_operator.py
+++ b/airflow/contrib/operators/jira_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 
 
 from airflow.contrib.hooks.jira_hook import JIRAError

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/operators/mysql_to_gcs.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/operators/mysql_to_gcs.py 
b/airflow/contrib/operators/mysql_to_gcs.py
index 4e238ca..df3489c 100644
--- a/airflow/contrib/operators/mysql_to_gcs.py
+++ b/airflow/contrib/operators/mysql_to_gcs.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 
 import sys
 import json

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/operators/postgres_to_gcs_operator.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/operators/postgres_to_gcs_operator.py 
b/airflow/contrib/operators/postgres_to_gcs_operator.py
index 8224b36..9eac70d 100644
--- a/airflow/contrib/operators/postgres_to_gcs_operator.py
+++ b/airflow/contrib/operators/postgres_to_gcs_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 
 import sys
 import json

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/operators/pubsub_operator.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/operators/pubsub_operator.py 
b/airflow/contrib/operators/pubsub_operator.py
index 40c863f..0822453 100644
--- a/airflow/contrib/operators/pubsub_operator.py
+++ b/airflow/contrib/operators/pubsub_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 
 from airflow.contrib.hooks.gcp_pubsub_hook import PubSubHook
 from airflow.models import BaseOperator

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/operators/qubole_operator.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/operators/qubole_operator.py 
b/airflow/contrib/operators/qubole_operator.py
index a5e9f5e..47ccf53 100755
--- a/airflow/contrib/operators/qubole_operator.py
+++ b/airflow/contrib/operators/qubole_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 
 from airflow.models import BaseOperator
 from airflow.utils.decorators import apply_defaults

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/operators/s3_list_operator.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/operators/s3_list_operator.py 
b/airflow/contrib/operators/s3_list_operator.py
index 9287515..1dcbc60 100644
--- a/airflow/contrib/operators/s3_list_operator.py
+++ b/airflow/contrib/operators/s3_list_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 
 from airflow.hooks.S3_hook import S3Hook
 from airflow.models import BaseOperator

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/operators/s3_to_gcs_operator.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/operators/s3_to_gcs_operator.py 
b/airflow/contrib/operators/s3_to_gcs_operator.py
index 666029f..d48e468 100644
--- a/airflow/contrib/operators/s3_to_gcs_operator.py
+++ b/airflow/contrib/operators/s3_to_gcs_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 
 from tempfile import NamedTemporaryFile
 

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/operators/sftp_operator.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/operators/sftp_operator.py 
b/airflow/contrib/operators/sftp_operator.py
index 44ea66d..6ceaacb 100644
--- a/airflow/contrib/operators/sftp_operator.py
+++ b/airflow/contrib/operators/sftp_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 from airflow.contrib.hooks.ssh_hook import SSHHook
 from airflow.exceptions import AirflowException
 from airflow.models import BaseOperator

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/operators/slack_webhook_operator.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/operators/slack_webhook_operator.py 
b/airflow/contrib/operators/slack_webhook_operator.py
index dff1c40..124b249 100644
--- a/airflow/contrib/operators/slack_webhook_operator.py
+++ b/airflow/contrib/operators/slack_webhook_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 #
 from airflow.operators.http_operator import SimpleHttpOperator
 from airflow.utils.decorators import apply_defaults

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/operators/snowflake_operator.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/operators/snowflake_operator.py 
b/airflow/contrib/operators/snowflake_operator.py
index 4947287..f59ee8b 100644
--- a/airflow/contrib/operators/snowflake_operator.py
+++ b/airflow/contrib/operators/snowflake_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 from airflow.contrib.hooks.snowflake_hook import SnowflakeHook
 from airflow.models import BaseOperator
 from airflow.utils.decorators import apply_defaults

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/operators/spark_jdbc_operator.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/operators/spark_jdbc_operator.py 
b/airflow/contrib/operators/spark_jdbc_operator.py
index cab4336..c915aaa 100644
--- a/airflow/contrib/operators/spark_jdbc_operator.py
+++ b/airflow/contrib/operators/spark_jdbc_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 #
 from airflow.contrib.operators.spark_submit_operator import SparkSubmitOperator
 from airflow.contrib.hooks.spark_jdbc_hook import SparkJDBCHook

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/operators/spark_sql_operator.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/operators/spark_sql_operator.py 
b/airflow/contrib/operators/spark_sql_operator.py
index 41511db..a67d939 100644
--- a/airflow/contrib/operators/spark_sql_operator.py
+++ b/airflow/contrib/operators/spark_sql_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 #
 from airflow.models import BaseOperator
 from airflow.utils.decorators import apply_defaults

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/operators/spark_submit_operator.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/operators/spark_submit_operator.py 
b/airflow/contrib/operators/spark_submit_operator.py
index 38a0db0..61a5d6a 100644
--- a/airflow/contrib/operators/spark_submit_operator.py
+++ b/airflow/contrib/operators/spark_submit_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 #
 from airflow.contrib.hooks.spark_submit_hook import SparkSubmitHook
 from airflow.models import BaseOperator

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/operators/sqoop_operator.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/operators/sqoop_operator.py 
b/airflow/contrib/operators/sqoop_operator.py
index cc0d646..05996d8 100644
--- a/airflow/contrib/operators/sqoop_operator.py
+++ b/airflow/contrib/operators/sqoop_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 #
 
 """

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/operators/ssh_operator.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/operators/ssh_operator.py 
b/airflow/contrib/operators/ssh_operator.py
index 4fba1a3..b8e320a 100644
--- a/airflow/contrib/operators/ssh_operator.py
+++ b/airflow/contrib/operators/ssh_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 
 from base64 import b64encode
 from select import select

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/operators/vertica_operator.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/operators/vertica_operator.py 
b/airflow/contrib/operators/vertica_operator.py
index 7a319f2..8629dcd 100644
--- a/airflow/contrib/operators/vertica_operator.py
+++ b/airflow/contrib/operators/vertica_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 from airflow.contrib.hooks.vertica_hook import VerticaHook
 from airflow.models import BaseOperator
 from airflow.utils.decorators import apply_defaults

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/operators/vertica_to_hive.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/operators/vertica_to_hive.py 
b/airflow/contrib/operators/vertica_to_hive.py
index 5e769fc..c9bf823 100644
--- a/airflow/contrib/operators/vertica_to_hive.py
+++ b/airflow/contrib/operators/vertica_to_hive.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 
 from builtins import chr
 from collections import OrderedDict

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/plugins/metastore_browser/main.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/plugins/metastore_browser/main.py 
b/airflow/contrib/plugins/metastore_browser/main.py
index b3754da..9a47ef5 100644
--- a/airflow/contrib/plugins/metastore_browser/main.py
+++ b/airflow/contrib/plugins/metastore_browser/main.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 
 from datetime import datetime
 import json

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/sensors/__init__.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/sensors/__init__.py 
b/airflow/contrib/sensors/__init__.py
index 9d7677a..4067cc7 100644
--- a/airflow/contrib/sensors/__init__.py
+++ b/airflow/contrib/sensors/__init__.py
@@ -1,13 +1,18 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/sensors/aws_redshift_cluster_sensor.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/sensors/aws_redshift_cluster_sensor.py 
b/airflow/contrib/sensors/aws_redshift_cluster_sensor.py
index bf29cbf..3b130af 100644
--- a/airflow/contrib/sensors/aws_redshift_cluster_sensor.py
+++ b/airflow/contrib/sensors/aws_redshift_cluster_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 
 from airflow.contrib.hooks.redshift_hook import RedshiftHook
 from airflow.sensors.base_sensor_operator import BaseSensorOperator

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/sensors/bash_sensor.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/sensors/bash_sensor.py 
b/airflow/contrib/sensors/bash_sensor.py
index 1781a0f..965c13c 100644
--- a/airflow/contrib/sensors/bash_sensor.py
+++ b/airflow/contrib/sensors/bash_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 
 from builtins import bytes
 import os

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/sensors/bigquery_sensor.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/sensors/bigquery_sensor.py 
b/airflow/contrib/sensors/bigquery_sensor.py
index 08d5a42..fe75548 100644
--- a/airflow/contrib/sensors/bigquery_sensor.py
+++ b/airflow/contrib/sensors/bigquery_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 from airflow.sensors.base_sensor_operator import BaseSensorOperator
 from airflow.contrib.hooks.bigquery_hook import BigQueryHook
 from airflow.utils.decorators import apply_defaults

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/sensors/datadog_sensor.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/sensors/datadog_sensor.py 
b/airflow/contrib/sensors/datadog_sensor.py
index 09efc85..9dad505 100644
--- a/airflow/contrib/sensors/datadog_sensor.py
+++ b/airflow/contrib/sensors/datadog_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 from airflow.sensors.base_sensor_operator import BaseSensorOperator
 from airflow.contrib.hooks.datadog_hook import DatadogHook
 from airflow.utils import apply_defaults

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/sensors/emr_base_sensor.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/sensors/emr_base_sensor.py 
b/airflow/contrib/sensors/emr_base_sensor.py
index 552c8c6..edb420e 100644
--- a/airflow/contrib/sensors/emr_base_sensor.py
+++ b/airflow/contrib/sensors/emr_base_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 from airflow.sensors.base_sensor_operator import BaseSensorOperator
 from airflow.utils import apply_defaults
 from airflow.exceptions import AirflowException

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/sensors/emr_job_flow_sensor.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/sensors/emr_job_flow_sensor.py 
b/airflow/contrib/sensors/emr_job_flow_sensor.py
index b38d1da..c33dbad 100644
--- a/airflow/contrib/sensors/emr_job_flow_sensor.py
+++ b/airflow/contrib/sensors/emr_job_flow_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 from airflow.contrib.hooks.emr_hook import EmrHook
 from airflow.contrib.sensors.emr_base_sensor import EmrBaseSensor
 from airflow.utils import apply_defaults

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/sensors/emr_step_sensor.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/sensors/emr_step_sensor.py 
b/airflow/contrib/sensors/emr_step_sensor.py
index 543efe4..bd76969 100644
--- a/airflow/contrib/sensors/emr_step_sensor.py
+++ b/airflow/contrib/sensors/emr_step_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 from airflow.contrib.hooks.emr_hook import EmrHook
 from airflow.contrib.sensors.emr_base_sensor import EmrBaseSensor
 from airflow.utils import apply_defaults

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/sensors/file_sensor.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/sensors/file_sensor.py 
b/airflow/contrib/sensors/file_sensor.py
index 3e30116..2e3a3fd 100644
--- a/airflow/contrib/sensors/file_sensor.py
+++ b/airflow/contrib/sensors/file_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 #
 
 import os

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/sensors/ftp_sensor.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/sensors/ftp_sensor.py 
b/airflow/contrib/sensors/ftp_sensor.py
index 5fb31c3..efdedd7 100644
--- a/airflow/contrib/sensors/ftp_sensor.py
+++ b/airflow/contrib/sensors/ftp_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 import ftplib
 
 from airflow.contrib.hooks.ftp_hook import FTPHook, FTPSHook

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/sensors/gcs_sensor.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/sensors/gcs_sensor.py 
b/airflow/contrib/sensors/gcs_sensor.py
index aa7afd3..036d4f0 100644
--- a/airflow/contrib/sensors/gcs_sensor.py
+++ b/airflow/contrib/sensors/gcs_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 from airflow.contrib.hooks.gcs_hook import GoogleCloudStorageHook
 from airflow.sensors.base_sensor_operator import BaseSensorOperator
 from airflow.utils.decorators import apply_defaults

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/sensors/hdfs_sensor.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/sensors/hdfs_sensor.py 
b/airflow/contrib/sensors/hdfs_sensor.py
index 7028cf9..5193add 100644
--- a/airflow/contrib/sensors/hdfs_sensor.py
+++ b/airflow/contrib/sensors/hdfs_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 from airflow.sensors.hdfs_sensor import HdfsSensor
 
 

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/sensors/jira_sensor.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/sensors/jira_sensor.py 
b/airflow/contrib/sensors/jira_sensor.py
index a8a0df7..6f73d19 100644
--- a/airflow/contrib/sensors/jira_sensor.py
+++ b/airflow/contrib/sensors/jira_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 from jira.resources import Resource
 
 from airflow.contrib.operators.jira_operator import JIRAError

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/sensors/pubsub_sensor.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/sensors/pubsub_sensor.py 
b/airflow/contrib/sensors/pubsub_sensor.py
index c591d55..c6b8467 100644
--- a/airflow/contrib/sensors/pubsub_sensor.py
+++ b/airflow/contrib/sensors/pubsub_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 
 from airflow.contrib.hooks.gcp_pubsub_hook import PubSubHook
 from airflow.sensors.base_sensor_operator import BaseSensorOperator

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/sensors/qubole_sensor.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/sensors/qubole_sensor.py 
b/airflow/contrib/sensors/qubole_sensor.py
index 1045040..2860f92 100644
--- a/airflow/contrib/sensors/qubole_sensor.py
+++ b/airflow/contrib/sensors/qubole_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 
 from qds_sdk.qubole import Qubole
 from qds_sdk.sensors import FileSensor, PartitionSensor

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/sensors/redis_key_sensor.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/sensors/redis_key_sensor.py 
b/airflow/contrib/sensors/redis_key_sensor.py
index 9328f21..0ecd34a 100644
--- a/airflow/contrib/sensors/redis_key_sensor.py
+++ b/airflow/contrib/sensors/redis_key_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 from airflow.contrib.hooks.redis_hook import RedisHook
 from airflow.sensors.base_sensor_operator import BaseSensorOperator
 from airflow.utils.decorators import apply_defaults

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/sensors/sftp_sensor.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/sensors/sftp_sensor.py 
b/airflow/contrib/sensors/sftp_sensor.py
index 6d6fbdd..08559e9 100644
--- a/airflow/contrib/sensors/sftp_sensor.py
+++ b/airflow/contrib/sensors/sftp_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 
 import logging
 from paramiko import SFTP_NO_SUCH_FILE

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/sensors/wasb_sensor.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/sensors/wasb_sensor.py 
b/airflow/contrib/sensors/wasb_sensor.py
index 50ce68b..c24f626 100644
--- a/airflow/contrib/sensors/wasb_sensor.py
+++ b/airflow/contrib/sensors/wasb_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 #
 from airflow.contrib.hooks.wasb_hook import WasbHook
 from airflow.sensors.base_sensor_operator import BaseSensorOperator

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/task_runner/__init__.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/task_runner/__init__.py 
b/airflow/contrib/task_runner/__init__.py
index 9d7677a..4067cc7 100644
--- a/airflow/contrib/task_runner/__init__.py
+++ b/airflow/contrib/task_runner/__init__.py
@@ -1,13 +1,18 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/task_runner/cgroup_task_runner.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/task_runner/cgroup_task_runner.py 
b/airflow/contrib/task_runner/cgroup_task_runner.py
index 04ae81c..0302802 100644
--- a/airflow/contrib/task_runner/cgroup_task_runner.py
+++ b/airflow/contrib/task_runner/cgroup_task_runner.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 
 import datetime
 import getpass

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/utils/__init__.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/utils/__init__.py 
b/airflow/contrib/utils/__init__.py
index c82f579..f0f8b68 100644
--- a/airflow/contrib/utils/__init__.py
+++ b/airflow/contrib/utils/__init__.py
@@ -1,14 +1,19 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/contrib/utils/sendgrid.py
----------------------------------------------------------------------
diff --git a/airflow/contrib/utils/sendgrid.py 
b/airflow/contrib/utils/sendgrid.py
index ebc32ec..206bb93 100644
--- a/airflow/contrib/utils/sendgrid.py
+++ b/airflow/contrib/utils/sendgrid.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 
 from __future__ import absolute_import
 from __future__ import division

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/dag/__init__.py
----------------------------------------------------------------------
diff --git a/airflow/dag/__init__.py b/airflow/dag/__init__.py
index 9d7677a..4067cc7 100644
--- a/airflow/dag/__init__.py
+++ b/airflow/dag/__init__.py
@@ -1,13 +1,18 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/dag/base_dag.py
----------------------------------------------------------------------
diff --git a/airflow/dag/base_dag.py b/airflow/dag/base_dag.py
index 83ecfb9..43b2ec1 100644
--- a/airflow/dag/base_dag.py
+++ b/airflow/dag/base_dag.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 #
 from __future__ import absolute_import
 from __future__ import division

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/default_login.py
----------------------------------------------------------------------
diff --git a/airflow/default_login.py b/airflow/default_login.py
index 7184f42..e6b1c05 100644
--- a/airflow/default_login.py
+++ b/airflow/default_login.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 #
 '''
 Override this file to handle your authenticating / login.

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/airflow/example_dags/__init__.py
----------------------------------------------------------------------
diff --git a/airflow/example_dags/__init__.py b/airflow/example_dags/__init__.py
index c82f579..f0f8b68 100644
--- a/airflow/example_dags/__init__.py
+++ b/airflow/example_dags/__init__.py
@@ -1,14 +1,19 @@
 # -*- coding: utf-8 -*-
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 


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