librxtx-java: Provide alternate URL for download.

The web server at rxtx.qbang.org is down at the moment.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
axbo: Move src attribute to the top.

No change in functionality, it just felt ugly to me :-D

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
collections: Add common packages from user env.

I'm not using all of them in a regular basis, but some packages such as
Gimp really need a ton of time to build, so let's build them on our
Hydra.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
collections: Sort package lists by name.

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