Merge pull request #2 from robin2405/master

anti sqlinjections
Update README.md
I'm recruiting!
Captcha bugfix
Security and performance improvements
Security fixes
Database Cleanup!
Translation change
Smileys
Update README.md
Mayor code layour improvements
Bugfixes

Bugfixes regarding the new code layout
Messaging Bugfix

A little bugfix with the Compose message button in inbox
Planned features list
Removed unused smiley
Update PLANNED FEATURES.md
Update PLANNED FEATURES.md
Code cleanup and Mysqli Update

A buggy Mysqli update and a huge code cleanup
Added some info
Bugfixes