F-35A - Modifications after Beta 1

I've finally found the time to complete (most of) the changes and improvements in response to the Beta 1 feedback. I will now move to the F-35B.

VISUAL MODEL:

- Added missing details to diffuse texture

- Redone specular texture, to achieve a "smooth" look
- Tail area redesigned (should be closer to real LRIP planes)
- Auxiliary air exhaust redesigned
- Fixed "disappearing pilot" glitch
- Added main gear doors actuators
- Added radar reflectors (or, at least, what I think are radar reflectors)
- Added some minor 3D details
- Redone UVW in canopy area
- Modified pilot helmet transparency level
- Modeled A/B effect, instead of .fx based one
VIRTUAL COCKPIT:
- Fixed light leakage from left console
- Fixed switches positions and animations
- Fixed several minor modeling issues, functionality not changed

FLIGHT MODEL:
- Reduced acceleration in various flight conditions
- Reduced effectiveness of speed brakes
- Provided alternate wheel contact points to get rid of "micro-oscillations" which happen when the plane is still (same issue as previous release)