nixpart: Add an alias called nixpart0.

The reason behind this is to avoid breaking NixOps while releasing
version 1.0 of nixpart. We could also use nixpart and nixpart1, but the
goal is to have nixpart as a generic part of NixOS instead of being only
used specifically for the Hetzner backend of NixOps.

Which essentially means: The partition syntax will change to be based on
attribute sets and we no longer need to use Kickstart syntax. And that's
the main reason why it will break in version 1.0.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
chromium: Fix build for version 28 and NSS 3.15.

Build failure details:

http://hydra.nixos.org/build/5663358

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
chromium: Update beta channel to v29.0.1547.41.

Builds fine on my machine and tested with a bunch of web sites.

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