Camera pitch and other things.

Added camera pitch.
Disabled shadow.
Changing vessel rotation buttons to ButtonRepeat.
Rotate camera around ship axis instead of relative "up"
Add option to hide launch clamps.

Note: I changed some buttons' label characters. I hope you like them.
Note: I'm setting a static farClipPlane value of 5000 because pitching the camera used to clip the model almost immediately. Will this affect performance?