afew: forgot to add --replace
Linux 3.12 release

Signed-off-by: Shea Levy <shea@shealevy.com>
fcron: Fix error when cron.mailto is null.

Signed-off-by: Moritz Ulrich <moritz@tarn-vedra.de>
Remove desktopManager.gnome

Gnome doesn't work at least since I started using NixOS half a year
ago, let's not give wrong impressions to newcomers. Packaging gnome3
is still something on horizon.