Simplified vehicle reservation rules

After a trial, we have decided to move to a simpler set of vehicle reservation rules. The new rules are:

DURING STAGING: If your squad is named the same as a crewman vehicle on the vehicle menu you have priority over one vehicle.

AFTER STAGING: If your squad is named the same as a crewman vehicle on the vehicle menu you have priority over one unoccupied or newly spawned vehicle if you wait at main.

The squad must not be using any other fighting vehicle when claiming a reserved vehicle.

It is first come first served for squads named the same.