Fix class name in ACP info file
Add missing ext.php
Move files to root
Remove some 3.0 files
Merge remote-tracking branch 'Derky/develop-caitlyn' into develop-caitlyn
Fix some issues with new 3.1 updates

@todo: softdelete needs to be fully integrated...
Use INCLUDECSS tag
Only list approved topics as news
Split logic from controller
Add all the routes :)
Use new way to load language files in user.setup
Add links for prev and next pages
Split template into multiple files and move CSS from HTML to .css
Fix template layout a bit
[develop-caitlyn] Cleanup controller dependencies
[develop-caitlyn] Use new pagination style

This will break the newspage, until PHPBB3-11805 is merged
[develop-caitlyn] Move some stuff into methods to clean up the controller
[develop-caitlyn] We use the cache for the icon data, no need for the query
[develop-caitlyn] Cleanup some more code
Correctly use INCLUDECSS instead of using the hack we had to use previously