* gnu/packages/xorg.scm: Add hashes to all packages.
* gnu/packages/xorg.scm: Transform propagated into normal inputs; allows to keep packages in alphabetical order.
* gnu/packages/xorg.scm: Remove packages not from ftp://ftp.freedesktop.org/pub/xorg/X11R7.7/src/everything/ . Add missing packages, for the time being with a 0 hash and without dependencies. Correct spelling (all lower case for package names).
* gnu/packages/xorg.scm: New module. * Makefile.am: Add it.