Merge pull request #122 from flokuep/develop

Some fixes
Fix assertion failure with enqueue texture
Fix wrong disabling/enabling of team number buttons
Merge branch 'develop' of git://github.com/Vocaluxe/Vocaluxe into develop
Fix wrong song played in TicTacToe
Fix a case where no songs will be available
Also some cleaner structure (no double storing of values)
Load bg color in credits screen
Merge pull request #123 from Flamefire/develop

Bugfixes
Added translators to credits. It's now easy to add new translators/languages to credits-screen.