Slightly better integration of the new factions into the galaxy map.

  - Those are minor modifications. The most important of them is likely
    the addition of two jump points from Pirate space to Za'lek space.
  - A few systems have been added near Protera, which has itself been
    moved. Much more work is to be done on Proteron.
* Aldous should be an aquatic planet, not a station in exterior image.
Merge http://github.com/bobbens/naev