fixed a typo and reorganized imports.
Merge branch 'master' of github.com:DataTorrent/Malhar
removed misleading comment.
Fixed warnings related to raw type and useless System.out.println statement.
removed unused imports.
Cleaned up the LocalFSInputOperator so that the duplicate functionality is removed.
Merge branch 'master' of github.com:DataTorrent/Malhar
Merge branch 'master' of github.com:DataTorrent/Malhar
Merge branch 'master' of github.com:DataTorrent/Malhar