cl_main.c: Clean up version string a little
cmd.c: Add setrom parsing to first init phase, clean up includes a little
cvar.c: setrom command now uses set's semantics. Cvar_Set, Cvar_Set_f,
Cvar_Setrom_f now do a Con_DPrintf to report attempts to set CVAR_ROM
cvars.
sv_main.c: Clean up version string a little
vid.c: -winsize, -width, and -height no longer use Cvar_SetROM. The code
looks a little uglier, but it's more correct.
