Made Scala and Java examples more consistent
Added Java equivalent of Scala RelationalQuery example program
Rework CLI client
  - Add degree of parallelism option (run and info)
  - Simplify options (-j and -a not needed any more)
  - Fix corner cases with YARN
  - Many tests
Remove wait flag from CLI client. Wait is now the default.
added improved syntax for annotations. Lists now possible within one String
Add additional test for semantic properties and translation. Fix some bugs.
Fixes an issue with wrong ClassLoader when submitting JobJars.
Improve error handling for Job Submission.
Removed System.exit() from Java example programs
removed System.exit() calls in Scala example programs