PIG-2417: Streaming UDFs - allow users to easily write UDFs in scripting languages with no JVM implementation

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Preparing for release 0.12.0

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Preparing for 0.13.0 development

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PIG-3461: Rewrite PartitionFilterOptimizer to make it work for all the cases (aniket486)

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PIG-3479: Fix BigInt, BigDec, Date serialization. Improve perf of PigNullableWritable deserilization

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1526042 13f79535-47bb-0310-9956-ffa450edef68
PIG-3468: PIG-3123 breaks e2e test Jython_Diagnostics_2

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PIG-3360: Some intermittent negative e2e tests fail on hadoop 2

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PIG-3458: ScalarExpression lost with multiquery optimization (knoguchi)

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PIG-2417 - fix for compilation failure due to unmappable character for encoding UTF8 (jeremykarn via rohini)

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1526287 13f79535-47bb-0310-9956-ffa450edef68
PIG-3487: Fix syntax errors in nightly.conf

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1526591 13f79535-47bb-0310-9956-ffa450edef68
PIG-3370: Add New Reserved Keywords To The Pig Docs (cheolsoo)

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PIG-3484: Make the size of pig.script property configurable (cheolsoo)

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PIG-3485: Remove CastUtils.bytesToMap(byte[] b) method from LoadCaster interface (cheolsoo)

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Revert PIG-3484 because it breaks unit tests

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PIG-3114: Duplicated macro name error when using pigunit

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PIG-3484: Make the size of pig.script property configurable (cheolsoo)

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PIG-3434: Null subexpression in bincond nullifies outer tuple (or bag)

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1527774 13f79535-47bb-0310-9956-ffa450edef68
PIG-3491: Fix e2e failure Jython_Diagnostics_4

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PIG-3292: Logical plan invalid state: duplicate uid in schema during self-join to get cross product

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include sdsuLibJKD12 since it switch license to Apache

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