[Gtkradiant] [Bug 89] implement Quake 1 support

[gtkradiant@zerowing.idsoftware.com]

http://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=89





------- Additional Comments From wjoseph@europe.ea.com  2003-12-09 15:41 -------
1.5 has q1-mode with support for:

loading wad as a type of pk3.
loading textures from wads (as "mip" format).
loading q1 .map
loading q1 .mdl

it needs support for:
browsing textures in wads.
restricting the wads available using the "wad" key in worldspawn entity

other tasks:
create q1 module in setups.