A basic start on physics, including bounding box search.
Implement some basic entities.
Implemented the Painting entity, as well as NBT storage and retrieval
Implement remaining LivingEntities
Fix code style according to checkstyle.xml. Add remaining required class checks for spawning all other entities.
Clean up spawn method to use entity class registry.
Simplify GlowPainting and abstract as-necessary methods to GlowHanging.

Fix GlowPlayer Imports.
Fix serialization exception cases with nulls. Things should load and save fine now (with some bits missing).
Merge branch 'master' into pr-282

Conflicts:
	src/main/java/net/glowstone/entity/GlowEntity.java
	src/main/java/net/glowstone/entity/GlowLivingEntity.java
	src/main/java/net/glowstone/entity/GlowPlayer.java
Merge branch 'master' into pr-282
Merge branch 'master' into pr-282

Conflicts:
	src/main/java/net/glowstone/block/ItemTable.java
	src/main/java/net/glowstone/entity/meta/MetadataIndex.java
Merge pull request #3 from dequis/pr-282

Merged your entities branch for you
Fix remaining entities.