Implemented the specific combined file input format classes.
Move to 2.0.3-alpha-t1-SNAPSHOT, and undo the changes to override the commons-daemons dependency.
Merged 2.1.5.
Added more to .gitignore.
Unified the builds both on hadoop 1.0 and on hadoop 2.0.
Merge remote-tracking branch 'origin/sjlee_playing_with_gradle' into 2.1-hadoop-2.0