Rush module functional is done. Small bugfixes are remained.

Authorization request for backend. Fixed #1
Certificates were added to olympiad's module. Fixed #10
Moderator's panel was added. Fixed #14
Fluent CMS and all it's modules are fully compaitable with PHP 5.2. Fixed #19
Bugs with access rules were fixed. Fixed #23
User interface is fully responsive. Fixed #22

Small bugfixes. Fixed #27
Trash cleaning. Unnecessary files were removed.