v7.0.PRE2

-Some parts moved to the Firespitter Legacy Parts Pack. Download that to keep using existing craft files.

-Tweakable engines! Adjust the number of propeller blades, their length, and the engine size in the hangar!
-Updated helicopter engine and tail rotors/fenestrons using aerodynamic blade lift, and a much improved hover code.
-Modular fuel tanks. A single part with alternate texutres and fuel tanks. Toggle through the choices in the hangar. (oblong multi-tank and fuel drop tank)
-Wheel alignment guides end the scourge of crooked gear placement. Press F2 to toggle guide lines.
-New tail boom model added to the old tail boom (Switch model in hangar) (WIP, untextured)

-A new engine module that supports atmospheric engines much better, separates engine start up time from throttle response, and allows for electric engines without the extra FScoolant resource.
-Apache cockpit monitors are off by default to reduce lag. Click a button to turn them on.
-Helicopter engines display a guide arrow to assist in putting them on the right way.
-New texture switch, mesh switch and fuel tank switch modules allows for many varieties in a single part
-Added optional Part Catalog icon from Kwirkilee
-Added visual brake response to flight control pedals
-Various bug fixes