PIG-3902: PigServer creates cycle (thedatachef via cheolsoo)


git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1593741 13f79535-47bb-0310-9956-ffa450edef68
PIG-3926: ROUND_TO function: rounds double/float to fixed number of decimal
places - addendum patch (mrflip via cheolsoo)


git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1593742 13f79535-47bb-0310-9956-ffa450edef68
PIG-3932: Document ROUND_TO builtin UDF (mrflip via cheolsoo)


git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1593743 13f79535-47bb-0310-9956-ffa450edef68
PIG-3923: Gitignore file should ignore all generated artifacts - addendum patch
(mrflip via cheolsoo)


git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1593744 13f79535-47bb-0310-9956-ffa450edef68