Core/Vehicles:

- Allow configurable TempSummonType and timer for vehicle_accessory table instead of hard coded values
- Reimplement some earlier charted VehicleSeatFlagsB, that were temporarily removed because of VEHICLE_SEAT_FLAG_UNCONTROLLED (they now work in conjunction with eachother)

sql/updates/world/2011_02_22_4_world_vehicle_accessory.sql

@@ -0,0 +1,3 @@
+ALTER TABLE `vehicle_accessory`
+ADD `summontype` TINYINT(3) UNSIGNED NOT NULL DEFAULT 6 COMMENT "see enum TempSummonType",
+ADD `summontimer` INT(10) UNSIGNED NOT NULL DEFAULT 30000 COMMENT "timer, only relevant for certain summontypes";