Command system - Clean up & Unit Tests
Command system - Allow custom registration system possible with CommandExecutor
Add CommandOutcome.UNSUPPORTED_SENDER and implicit CommandSender subclass requirment for annotated methods
Allow command args to be mapped to method parameters
Add case insensivity test
Add nested commands support
Add plugin prefix and aliases support
Add debug methods to Server
Add settings to Server
Make PVP per-world; dispose of unused fields and imports; change Server#getWorlds return type
Command permissionDefault should be PermissionDefault.ADMIN
Clean up command system and add Javadoc
ForceUpdateData tweak
Accomodating for PVP update
Bring up to speed.