Release Show Stoppers
 All modules
    - Convert remaining conf.php.dist files to conf.xml files (DONE).
        - Fix or better cleanup redirection/frameset loading code (DONE).
- Remove use of Prefs::getPref() (DONE).
- Find a better way of accessing user profiles (Identities) (DONE).
- Be able to switch between preferences scopes in all Options screens (DONE).
 
 Horde
    - Fix preferences with a "none" preference backend (DONE).
        - Package remaining Horde libs (DONE).
- Rename DataTree? database tables/fields to use datatree, not category.
 
 IMP
    - HTML composition (DONE).
        - Folder changes updating correctly in cache (DONE).
 
 Whups
    - Rename database fields/tables to refer to queue, not module.