Merge branch 'master' of git:https://github.com/teeworlds/teeworlds into Gi…

…nsta

Merge branch 'master' of git:https://github.com/teeworlds/teeworlds into Fly

made 0.6.1 release

changed version

0.6.0 release

beginning of 0.6 version

last 0.5 compatible version