Update TestCommands.java

Stats added
Update BlockListener.java

Cleanup
Update ChatListener.java

Cleanup
Update InventoryListener.java

Cleanup
Update JoinQuitListener.java

Cleanup
Update MovementListener.java

Cleanup
Update PlayerListener.java

Cleanup
Update ConfigAccessor.java

Cleanup
Update InfectionDetection.java

Added stats, cleanup
Update PlayerContainer.java

Cleanup
Update RoundTimer.java

Cleanup
Update ZombieCore.java

Added stats, cleanup
Update plugin.yml

Added stats
Merge pull request #1 from Timtower/master

Stats support