revert libXrender version because building cairo-1.10.2 failed.

component/xorg/buildout.cfg

@@ -307,12 +307,12 @@ md5sum = d43c2afc69937655d13c02588c9ff974
 
 [libXrender]
 recipe = slapos.recipe.cmmi
-url = http://www.x.org/releases/X11R7.7/src/everything/libXrender-0.9.7.tar.bz2
-md5sum = ee62f4c7f0f16ced4da63308963ccad2
+url = http://xlibs.freedesktop.org/release/libXrender-0.9.0.tar.bz2
+md5sum = ce7cda009aa0b10a73637941d44ae789
 configure-options =
   --disable-static
 environment =
-  PKG_CONFIG_PATH=${kbproto:location}/lib/pkgconfig:${renderproto:location}/lib/pkgconfig:${libX11:location}/lib/pkgconfig:${libXau:location}/lib/pkgconfig:${libxcb:location}/lib/pkgconfig:${render:location}/lib/pkgconfig:${xorg-libpthread-stubs:location}/lib/pkgconfig:${xproto:location}/lib/pkgconfig
+  PKG_CONFIG_PATH=${kbproto:location}/lib/pkgconfig:${libX11:location}/lib/pkgconfig:${libXau:location}/lib/pkgconfig:${libxcb:location}/lib/pkgconfig:${render:location}/lib/pkgconfig:${xorg-libpthread-stubs:location}/lib/pkgconfig:${xproto:location}/lib/pkgconfig
   PATH=${pkgconfig:location}/bin:%(PATH)s
 
 [libXinerama]