Prevent "Player tracking enabled" message when choosing team/class
Fixed crash on join when a reward ID is set
Removed global.eventBuffer

Just use global.sendBuffer everywhere. To make this work properly, the
handling of joining players was moved to GameServer End Step.
Merge branch 'master' of git://github.com/Medo42/Gang-Garrison-2 into autobalance
Removed with(GameServer)