common: Rename environment.nix into nix.package.

The former is now obsolete in current <nixpkgs>.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
Update Hydra submodule to latest master.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
domains: Add SSL (intermediate) certificates.

Of course we only provide the public keys here. Private keys will of
course be kept private ;-)

So, having this in Git, other people can possibly cross-check the
validity of the public keys in addition to just checking whether it has
been signed by an established CA.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
lighttyd: Add support for mod_magnet.

This requires that we pass enableMagnet to the expression of the
lighttpd derivation, which has been added in NixOS/nixpkgs@c9614d2.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
Add a new pkgs tree for ESL's MongooseIM.

The package builds well with all dependencies, but doesn't run at the
moment, because we still need some patching and maybe even a constantly
running Erlang VM process which is used to do hot-reloads of future
updates.

But well, in the short term, just try to get it working even with the
need of VM restarts so we can do some testing and benchmarking.

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