The following are items that need further work:
- Data Model:
 - Handle diffs for the Firebug free edit modes (HTML free edit is complete)
 - Implement more complex diffing on insert and remove. I.e. expand insert and remove
    combinations into distinct changes within the data rather than 2 events.
- CSS Changes merged with editor changes due to "race" condition
- Diff Monitor
 - Search
 - CSS Rep Links
- Unified Diff Panel
- Examine Undo/Redo functionality
- Testing
 - Automated Tests to replace manual