CombatMissionCtrl will no longer add frigates to the PrimaryWeapon Priority target list (previous commit) this extends that behavior to check to make sure we can hit the (now non-priority) frigate before choosing it as a target to shoot at. If the frigate gets too close starts going too fast, etc (when you have turrets mounted) it should switch targets to something it CAN hit. If their is nothing left but things you cant hit it WILL try to hit them (should this be configurable?!)