[Xcb] [PATCH 2/2 xcb-util] config: generate ChangeLog and INSTALL

[Arnaud Fontaine]

Hi,

    > By copying a snippet of Makefile for xorg modules.  One
    > side-effect is that Makefile.in is no longer deleted on maintainer
    > clean. This should never be done as it leaves your configuration
    > in a half-broken state.

Pushed, thanks.

Cheers,
--
Arnaud Fontaine