dpdefs : fixed wrong values for VF_SIZE_X and VF_SIZE_Y in csprogsdefs.qc
Engine : implemented a 'viewpos' command (adapted from Fitzquake code) which
shows the player's current position and angles.
Engine / TMX : load the pieces at the end of Mod_LoadModel(), instead of
in a separate call.  This fixes the problem where 'vid_restart' would
reload the TMX model (clearing the pieces[] array) but did not reload the
piece models.  This is actually the "proper" way to do it.
Game code : light entities no longer delete themselves.  This fixes the
problem where re-entering the same map would be completely dark.
Began work on particle effects file : oga/effectinfo.txt
Currently it contains a definition for 'AJ_FIRE' to be used on wall torches.