added SopremoVarargFunction0
Merge branch 'master' of https://github.com/AHeise/stratosphere-sopremo
changed join standard result projection to array union
fixed imports
Merge branch 'master' of https://github.com/AHeise/stratosphere-sopremo
fixed tests in TwoSourceJoinTest
Merge pull request #26 from fatschi/master

some meteor changes
Merge remote-tracking branch 'original/master'
Source & Javadoc cleanup