[Xcb] XCB documentation effort

[Michael Stapelberg]

Hi Peter,

Excerpts from Peter Harris's message of 2011-11-22 22:11:54 +0000:
> Modification of xproto.xml is great, as long as the docs in xproto.xml
> are language agnostic...
Yes, I am trying to keep it that way.

> ...and I don't see anything C specific in the attached xproto.xml patch.
> Looks good[1] to me, so far.
True, except for generating different comments, nothing will change on the C
side (at least that’s the plan for now).

> [1] As dummy text. I'm sure you already know the contents are inaccurate.
Yes, I am aware of that.

Best regards,
Michael