Map XML: Store camera position. Stopped using DTDs (because they make it
too hard to change the XML structure without breaking all the old XML
files).
Game.h: Include fewer files, to make compilation sometimes faster.
World: Changed some things to not be singletons, since they were
(ab)used as CWorld members.
This was SVN commit r3670.
Terrain: added terrain-editing code to CTerrain, for better
encapsulation or something.
Console: simplified screen resizing.
Game/etc: removed some unnecessary header file inclusions.
This was SVN commit r2459.