* Fix null pointer dereference crash in server hitbox drawing code; implemented a proper getter for CStudioHdr.
* Moved 'baseentity.h/cpp' to 'game/server/' instead.
* Overall light cleanup.
Rare crash when the sqvm tries to look for an animation sequence on a missing prop_dynamic model (mdl/error.rmdl doesn't support animations), its purely to indicate there is a problem).