Release 0.15!

[Brendan Burns]

Hey folks,
I've tagged release 0.15 and put it up at 
http://www.icculus.org/quake2/files/quake2-r0.15.tar.gz  I haven't put 
a link on the website yet because I'd like some folks to download it 
and test it before I make it really, really available.  So please test 
it out!

Hilights include:
	* Infamous spark o' death has been fixed.  Many thanks to Russell 
Melliger for tracking this down...
	* Crosshairs are now scalable in q2max and all 9 are now available
	* Stencil shadows are available in non-q2max mode.

Thanks to everyone who contributed!

--brendan