Added support for thread monitoring to chunk storage and growth simulation.
Extended chunk monitor to highlight tesselated chunks.
Improvements for chunk monitoring.

+ Added support for monitoring of chunk tessellation
+ Allow user to select a chunk with the mouse
* Internal improvements for chunk monitor rendering
Slightly improved rendering of selected chunk.
Merge branch 'develop' into monitoring

Conflicts:
	src/main/java/org/terasology/world/chunks/store/ChunkStoreProtobuf.java
Merge pull request #501 from mbrotz/monitoring

Some additions/improvements for advanced monitoring.