Very long list of changes this time, but mostly internal, here is a (probably incomplete) list:Commit ID: 02b437cef014fcf9247676437aa17cff92cbf387, 39 changed files with 163 additions and 210 deletions.Commit ID: 47b18c9f56b4db8680d025009854a8c09f77a878, 104 changed files with 333 additions and 467 deletions.Commit ID: e0b2c17fdf06560b67f7e3fdcaeca7656f6f7b98, 101 changed files with 4,971 additions and 744 deletions.Commit ID: 67df956b7c1965eab936b1a782d8e2cf4a63c118, 18 changed files with 219 additions and 19 deletions.Commit ID: 9017a32f57560d81d6366e47142c32c7131979c8, 44 changed files with 1,159 additions and 381 deletions.Split off all Admin-backend related source files into its own directory. Reason: de-clutter the main Sources folder and allow additional security features (for examples, Sources/backend, where the admin sources are now located, could be protected with IP based access control lists. Note: Requires some additional work to split off parts of the admin code that is used in frontend features. Example: Manage-Attachments.php, which basically belongs to the admin sources but is being used in many parts of the frontend.Cleaned up the theme, old and obsolete images removed from the default theme.Backend (admin) theme split off into its own theme directory. The ultimate goal is to create a completely independent theme for the admin area (like it is done in WordPress and many other products). There should be no need to ever modify admin theme templates.Classic topic icons for indicating hot / very hot / sticky / locked topics are gone. Instead, topic rows now indicate topic status in a different way. Also, the icon legend at the bottom of topic lists is gone.
