PIG-3505: Make AvroStorage sync interval take default from io.file.buffer.size (rohini)

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1541218 13f79535-47bb-0310-9956-ffa450edef68
Revert PIG-3507: It fails to run pig in local mode on a Kerberos enabled Hadoop cluster as it breaks compatibility with hadoop 0.20

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1541219 13f79535-47bb-0310-9956-ffa450edef68
PIG-3570: Rollback PIG-3060

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1541674 13f79535-47bb-0310-9956-ffa450edef68
Merge latest trunk changes into tez branch


git-svn-id: https://svn.apache.org/repos/asf/pig/branches/tez@1541677 13f79535-47bb-0310-9956-ffa450edef68