Merge pull request #19 from evionkim/master

Enumerate() now implements accumulator interface
Updated documentation for Enumerate() and ReverseEnumerate() around use of accumulator.
Updated README to show variance and use streaming quantile.
Updated README.
Remove pig and hadoop from pom

These should not be included in the pom.  While we have tested against specific versions, people should be able to use others without having to add an exclusion.
Also removed testng from pom.
Download maven-ant-tasks using ivy
Released 0.0.6, bumping version
Fix VAR javadoc
Removed release target
Update README and fix pom url so points to data.linkedin.com
Add links in README
Update SetUnion() to use distinct bags for scalability
Merge pull request #21 from samshah/master

Use distinct bags to make SetUnion more scalable
SetIntersect shouldn't throw if either of the input bags are empty
Merge pull request #22 from njwhite/master

SetIntersect shouldn't throw NPEs when either of the input bags are empty
correct misspelling or retrieve in build.xml
Merge pull request #23 from talevy/patch-1

correct misspelling or retrieve in build.xml
Add inputSchema checking to SimpleEvalFunc so the schema is checked at pig compile time, instead of run time.
Fix the log message for type mismatches in SimpleEvalFunc.
Small fix to SimpleEvalFunc javadoc