Add vim stuff to .gitignore
Make UI_CVAR_CREATE use VM specific code

Makes cvar be flagged as VM created and unset ROM if ARCHIVE is set.
Remove the SMP renderer feature
Update README
Merge remote-tracking branch 'upstream/master'

Conflicts:
	.gitignore
	Makefile
	README
	code/client/cl_ui.c
	code/rend2/tr_font.c
	code/rend2/tr_init.c
	code/renderer/tr_font.c
	code/renderer/tr_init.c
	code/renderer/tr_light.c
	code/renderer/tr_local.h
	code/renderer/tr_surface.c
	code/renderer/tr_world.c
Remove remaining SMP code