Host_Main improvements. Workaround to avoid crash with +map no longer needed.

Host_Main improvements. Workaround to avoid crash with +map no longer needed.

* FreeType2 now tries to load by default, regardless of game.
  This fixes font issues if this cvar is turned off after the subsystem
  is already initialized. This has no side effects in Quake as far as I
  can tell.

* Host_StartVideo has been moved to CL_Init where it honestly should be.
  This makes it easier to initialize the engine without a client
  compiled in. The FT2 fix allows initialization to happen early without
  screwing with the fonts.

* VID_Start will now parse +vid_width and +vid_height just the same as
  -width and -height, as well as +vid_fullscreen 1 and 0 for -fullscreen
  and -window respectively.

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@12699 d7cf8633-e32d-0410-b094-e92efae38249