- replace a few constant values with GL macros in tr_cmds.c

- tidy up top of tr_types.h a bit, change flags to hex representation
- make ROM cvar enforcing really work
- remove cg_stereoSeparation from cgame as it is obsolete.
- Add CG_DrawCrosshair3D so people see crosshair correctly when stereoseparation is enabled

code/client/cl_main.c

@@ -2743,6 +2743,8 @@ void CL_Init( void ) {
 
 	// cgame might not be initialized before menu is used
 	Cvar_Get ("cg_viewsize", "100", CVAR_ARCHIVE );
+	// Make sure cg_stereoSeparation is zero as that variable is deprecated and should not be used anymore.
+	Cvar_Get ("cg_stereoSeparation", "0", CVAR_ROM);
 
 	//
 	// register our commands