Allow Nomad Capitals for the indie Nomad ID (and some other changes)

[Thunderer]

I am for the transport-friendly ID.

Transport friendly version:

Pilot carrying this unlawful ID is a Nomad, who :

- Can engage any ship in the Omicrons and Omegas except for Nomad and Wild ships.
- Can treat transports as combat targets when flying Nomad Fighters, Nomad Bomber or Nomad Gunboat.
- Cannot treat transports as combat targets when flying the Nomad Cruiser or Nomad Battleship.
- Cannot leave the Omicrons, Omegas and Tohoku.
- Cannot ally with anyone except Nomads and Wild.
- Cannot demand credits or cargo.
- Cannot dock anywhere except on Nomad and Wild bases.
- Cannot bring Cruisers or Battleships into any system containing a Jump Gate with the exception of Tohoku and the Omicrons.

Allowed ships: Nomad Fighters Nomad Bomber, Nomad Gunboat, Nomad Cruiser, Nomad Battleship