Added support for tags in EC2 images (based on the work done by @brockn in [jclouds#55](https://github.com/jclouds/jclouds/pull/55)).
I've built jclouds and all labs projects and all tests are passing. @everett-toews @adriancole This affects aws-ec2 and openstack-nova-ec2. Could you have a quick look and see if this might break something? @brockn Could you try these changes in your environment to make sure it still fits your needs? You can merge this Pull Request by running: git pull https://github.com/nacx/jclouds 160-ec2-image-tags Or you can view, comment on it, or merge it online at: https://github.com/jclouds/jclouds/pull/56 -- Commit Summary -- * JCLOUDS-160: Support tags in EC2 images -- File Changes -- M apis/ec2/src/main/java/org/jclouds/ec2/domain/Image.java (16) M apis/ec2/src/main/java/org/jclouds/ec2/xml/DescribeImagesResponseHandler.java (28) M apis/ec2/src/test/java/org/jclouds/ec2/xml/DescribeImagesResponseHandlerTest.java (25) A apis/ec2/src/test/resources/describe_images_tags.xml (33) M apis/openstack-nova-ec2/src/main/java/org/jclouds/openstack/nova/ec2/xml/NovaDescribeImagesResponseHandler.java (5) M providers/aws-ec2/src/test/java/org/jclouds/aws/ec2/compute/strategy/AWSEC2ReviseParsedImageTest.java (5) -- Patch Links -- https://github.com/jclouds/jclouds/pull/56.patch https://github.com/jclouds/jclouds/pull/56.diff
