Currently I'm using a (not very well) downscaled version of the NixOS logo, so we want to replace it by a proper image ASAP.

Other than that, the idea is to have something like this in hydra-build-products:

file channel $out/channel.tar.bz2

Right now of course, it's only displayed at the corresponding builds, so we might want to have aggregates on all channels for a project, jobset or maybe even single jobs?

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