Added some javadoc.
Minor performance boost for mesh rendering.
Created a class for keeping meshes sorted. It is untested and unused.
Also added a method to the LocalPlayer class for memory efficient location retrieval.
Added some javadoc comments to methods in other classes.
Merge branch 'develop' of https://github.com/Xanhou/Terasology.git
Merge pull request #3 from Xanhou/master

Oops wrong branch