Merge pull request #30 from Chrisbotcom/SmoothGranite

Command handling fixes and working test plugin
General Import Cleanup.
Granite/Entity cleanup.
Removed unused methods and added new methods.
Removed unused mappings for entity and added some field mappings.
Merge branch 'AzureusNation-master'

Conflicts:
	src/main/resources/mappings.conf
Merge branch 'SmoothGranite' of https://github.com/Chrisbotcom/Granite into Chrisbotcom-SmoothGranite

Conflicts:
	src/main/java/org/granitemc/granite/world/GraniteWorld.java
Merge branch 'Chrisbotcom-SmoothGranite'
Remove unnecessary methods
Move world border stuff to a new class WorldBorder
Rename getItemStack to createItemStack
Documentation for block/item types
Document some more
Clean up Entity interface

Just a little housecleaning. Added missing interface declartions.