Fixed:
- Fixed reply and Core::user() function where there would be an error sending notifications to watchers who are not existing in the database anymore.
- Fixed some session problems
- Fixed a problem where users who signed in with facebook account can’t edit their profile
- Added value auto-fill after submitting to register form.
- Avatars have now a fixed size in conversations home

New features:
- New installer
- You can now edit a title of a thread
- Smiley overview
- You can now decide if a double post of a user shall be merged or not
- Changed from mySQLi to PDO
- More SEO friendly
- Profile comments
- Profile visitors
- New theme

Removed features:
- Additional database feature deleted