Added position module
Added physics module
Physics: added custom voxel terrain shape
Physics: added capsule shape
Physics: basic character controller
Character: added friction and jumps
Character: ray test to check whether it is touching the ground
Fix: constified Phy_SetPositionv()'s 2nd parameter
Physics: refactored the character controller
Added character module
Character controller handles rotation
Network: fixed UDP packets (size stuff)
Position: renamed serialization functions, constified some parameters, added POS_MAX_SERIALIZED_SIZE constant
Phy_ClearCharacter() now calls Phy_RemoveCharacter()
Added serialization functions for character module
Added POSIX timer module
Added TLP_NUM_CLIENTS and TLP_VOXEL_UNIT
Character controller: some refactoring and a fuckton of tweaking:
          custom CCD, anti-slide on slopes, movement strengh
New tree generator module
Tree generator now takes size in world-space and not voxel-space