Merge recent set of changes from fullstack_hyracks_result_distribution to fullstack_asterix_stabilization.

git-svn-id: https://hyracks.googlecode.com/svn/branches/fullstack_asterix_stabilization@3027 123451ca-8445-de46-9d55-352943316053
tree: 0fbf8c2e0b9e12c3a91155fda0f201eb802ffb6e
  1. algebricks/
  2. hivesterix/
  3. hyracks/
  4. pom.xml
  5. pregelix/