libGL documentation in xorg-docs

[Alan Coopersmith]

Buried in the xorg-docs module is a document that describes the
libGL implementation for XFree86-based systems:
http://cgit.freedesktop.org/xorg/doc/xorg-docs/tree/specs/GL/libGL.txt

While a lot of this is out of date (description of how Mesa was
built into the old XFree86/Xorg monolith builds, all the XFree86
references, instructions to register extensions with SGI, etc.),
there seems to be some information that is still useful.    Is
there already documentation of these things in Mesa, or should
this document be moved to the Mesa repo where the Mesa developers
can update it for the current state of the libGL world?

-- 
	-Alan Coopersmith-           alan.coopersmith at sun.com
	 Sun Microsystems, Inc. - X Window System Engineering