[ioquake3] [PATCH] mumble link support

[Ryan C. Gordon]

> This is definitely a cleaner Mumble support patch than mine...if Mumble 
> support is going in Subversion, it should go from this one, and I'll 
> update the VoIP patch to correct for code overlap.

Can someone make a decision on Ludwig's Mumble support? I'd like to 
update my VoIP patches, but they need to take cl_useMumble into account, 
so this has to go in to Subversion first if it's going in.

Thanks,
--ryan.