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


git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1527631 13f79535-47bb-0310-9956-ffa450edef68
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

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1527825 13f79535-47bb-0310-9956-ffa450edef68