[quake2] More changes/comments

[Brian Hook]

>The duplication of q_shared.c in game and ctf is really, really
>bothering me.  It basically has to be updated between the two
>constantly, and they're not quite in sync.

Hmm, that seems to be a bit of an understatement now that I've looked 
at the diff.  It seems that during the ports that ctf was missed, 
e.g. there were __sun__ statements in game/ but not in ctf/?

Is someone up to doing a serious merge of q_shared.*?

Is there an OS X build of this by any chance?  There are the old 
Rhapsody files, but I've a feeling those are incredibly outdated and 
it would seem just going to a pure SDL approach might work best for 
OS X.

Brian