Fleets eventually absorb all ships

[smcameron]

On respawn, ships may randomly choose to join a fleet. But there's no way for a ship to leave a fleet (other than dying and respawning). As a consquence, fleets tend to grow indefinitely in size, and since joining a fleet forces the faction of the member to be the same as the faction of the leader, what happens, is all factions but one go extinct as a massive fleet crushes all before it.

Needs balancing.

[smcameron]

I think this is fixed by:

461d201 Reduce max ships per fleet to something reasonable
48a734c only join fleets that are the right faction already

Closing.