[q2x] cvars

[Nick Trout]

> > think this conversion would be easier if the project were C++ but
> > what the hey.
> 
> Dude, let's not even go there.

Way!

Will be doing more work next few days as I have some time coming up.
Nearly finished the GL DLL conversion and then will be onto the scary
task of debugging it. Hey, maybe it will just _work_ :-D

Currently there is just one Lua state which everything looks at. I'm
gradually getting an idea for how everything works but haven't quite got
my head around how the client/server thing works with cvars yet. I
assume values must get transmitted through the coms stuff between client
and server for remote/dedicated games. Not quite sure what happens if
server is your localhost. I.e. are there 2 "game instances" running,
client and server, or are they just one? There only seems to be one cvar
set though.

Nick