Beginings of the admin panel specific feedback stuff.
Cleanup
- Added method comments
- Removed old column_filter from feedback class.
Merge pull request #34 from methnen/feedback-faves-and-flags

Beginings of the admin panel specific feedback stuff.
Merge pull request #35 from borkweb/feedback-faves-and-flags

Deal with unapproved class
Allow other plugins to get the feedback on a given comment