merge libxcb 1.15.

merge libxcb and xcb-proto 1.14.

merge libxcb 1.13.1, libXinerama 1.1.4, and libXScrnSaver 1.2.3.

merge libxcb 1.13.

merge libXi 1.7.7, libXrandr 1.5.1, libXrender 0.9.10, libXtst 1.2.3,
libXv 1.0.11, libXvMC 1.0.10., and libxcb 1.11.1.

Reduce diffs to upstream.
Probably merge issue, mostly whitespace.

merge libxcb 1.10.

merge patches to libXi, libXrender, libXvMC and libxcb that fix
security issues listed in "X.Org Security Advisory: May 23, 2013"
but haven't had new versions released yet. see:

http://www.x.org/wiki/Development/Security/Advisory-2013-05-23

for more details on these patches.

initial import of libxcb-1.9

initial import of libxcb-1.7

initial import of libxcb-1.6