Lots of stuff, especially client-server stuff, like:
Fleshed out EnumDirection.
Implemented IEntity.getPosition() (Replaces getX/ZPos()) and getSpeed() (Returns the number of pixels per movement).
EntityLiving's constructor now includes arguments for pre-defined x and z positions.
RealmsOfCaelum changes:
* Now abstract.
* Included isRunning boolean, and stored Throwable.
* Modified an error message.
* Now has 2 modes: Client and Server. To switch between them, use the game argument "serverMode".
* Fullscreen mode has been fleshed out, it no longer stretches pixels.
* Plugin loading has been consolidated to one method.
* New methods: isClient(), isServer(), getServer(), isRunning(), handleError().
Implemented several classes to help with SMP implementation later on.