Hadoop 0.16.3

[Nigel Daley]

I've created a 0.16.3 release in Jira. Seems like perhaps these are  
candidates for 0.16.3?

https://issues.apache.org/jira/browse/HADOOP-3154
https://issues.apache.org/jira/browse/HADOOP-3159
https://issues.apache.org/jira/browse/HADOOP-3050
Nige