minor refactoring and more comments

git-svn-id: https://hyracks.googlecode.com/svn/branches/fullstack_staging@2088 123451ca-8445-de46-9d55-352943316053
10 files changed
tree: 2d4f396211fb9d17f06991510147d98cbead6caa
  1. algebricks/
  2. hyracks/
  3. pom.xml
  4. pregelix/