PIG-3506: FLOOR documentation references CEIL function instead of FLOOR

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PIG-3509: Exception swallowing in TOP (vrajaram via aniket486)

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1530479 13f79535-47bb-0310-9956-ffa450edef68
PIG-3510: New filter extractor fails with more than one filter statement (aniket486 via cheolsoo)


git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1531096 13f79535-47bb-0310-9956-ffa450edef68
PIG-3451: EvalFunc<T> ctor reflection to determine value of type param T is brittle (hazen via aniket486)

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1531384 13f79535-47bb-0310-9956-ffa450edef68
PIG-3512: Reducer estimater is broken by PIG-3497

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PIG-3480: TFile-based tmpfile compression crashes in some cases (dvryaboy via aniket486)

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Fix jdiff

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1531990 13f79535-47bb-0310-9956-ffa450edef68
Jdiff change for 0.12.0

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PIG-3519: Remove dependency on uber avro-tools jar (jarcec via cheolsoo)


git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1532851 13f79535-47bb-0310-9956-ffa450edef68
PIG-3520: Provide backward compatibility for PigRunner and PPNL after PIG-3419 (daijy via cheolsoo)


git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1532963 13f79535-47bb-0310-9956-ffa450edef68
Merge the latest changes from trunk


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