PIG-3426: Add support for removing s3 files

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1521207 13f79535-47bb-0310-9956-ffa450edef68
PIG-3426: Add support for removing s3 files

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1521211 13f79535-47bb-0310-9956-ffa450edef68
PIG-3430: Add xml format for explaining MapReduce Plan.

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PIG-3431: Return more information for parsing related exceptions.

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1521216 13f79535-47bb-0310-9956-ffa450edef68
PIG-3431: Return more information for parsing related exceptions.

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1521222 13f79535-47bb-0310-9956-ffa450edef68
PIG-3333: Fix remaining Windows core unit test failures

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PIG-3390: Make pig working with HBase 0.95

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PIG-3454: Update JsonLoader/JsonStorage

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1523773 13f79535-47bb-0310-9956-ffa450edef68
PIG-3454: Update JsonLoader/JsonStorage

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1523775 13f79535-47bb-0310-9956-ffa450edef68
PIG-3065: pig output format/committer should support recovery for hadoop 0.23

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1524152 13f79535-47bb-0310-9956-ffa450edef68
PIG-3235: Avoid extra byte array copies in streaming (rohini)

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1524181 13f79535-47bb-0310-9956-ffa450edef68
PIG-3464: Mark ExecType and ExecutionEngine interfaces as evolving (cheolsoo)


git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1524461 13f79535-47bb-0310-9956-ffa450edef68
PIG-3466: Race Conditions in InternalDistinctBag during proactive spill (cheolsoo)


git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1524464 13f79535-47bb-0310-9956-ffa450edef68
PIG-3455: Pig 0.11.1 OutOfMemory error (rohini)

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Merged latest trunk changes to tez branch

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