Re-add xmonad-contrib.

Signed-off-by: Magnus Therning <magnus@therning.org>
Update to ghc 7.8.2.

Closes #122

Signed-off-by: Magnus Therning <magnus@therning.org>
Merge branch 'archhaskell' into morepkgs

Conflicts:
	cblrepo.db
	readded lsc, sc, and logict