collections: Renome MPlayer to mplayer.

This is due to the following commit in nixpkgs:

NixOS/nixpkgs@f59881fc30d3e72d72f6f2e9e3688226bea0d2e9

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
Factor out kconf generator into lib/default.nix.

This should get rid of the duplication already marked with XXX and of course
should make the machine-specific configuration way easier to read.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
overrides: Update kernel source to v3.8.0-rc5.

We're not in the dark age anymore, so let's move forward! :-)

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
overrides: Update kernel source to latest master.

Of course just for the sake of not being stuck an a specific -rc tag, this is
gonna put us a few commits forward into the futuuuuuuuureeeee, err, yes :-)

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
overrides: Add tkabber urgent plugin.

This is particularily useful sometimes to activate if you actually _want_ to be
interrupted in your work flow. It is within the Tkabber 3rd party plugins
repository. So maybe we want to package the plugin repository in upstream
nixpkgs?

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
dnyarri: Update kernel configuration to v3.8.

These changes were lying around uncommitted for quite some time, so better
commit now than never :-)

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
dnyarri: Catch up with mmrnmhrm's xserver config.

This should now bring the synergy and multi head config in sync, so both
machines blend into a seamless 4-monitor-system.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
dnyarri: Add "aszlig" to the audio group.

Pulse doesn't seem to get the right permissions to the audio devices. I'm not
sure whether this is a multi-seat configuration problem or if the culprit is
because synergy doesn't count as a physical pointer in some cases.

This needs some research, I think. But maybe it's even a better idea to run
pulseaudio as a systemd service, because it's a remote sink for dnyarri as well.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>