Adding Ascent autopilot option to limit the angle of attack attempted
during launch. Useful for when guidence wants to force big rockets over
faster than they can structurally handle, particularly when ferram4's FAR
or NEAR mods are present.
Merge bk2w Adding Ascent autopilot option to limit the angle of attack during launch #428
Use some of  sanedragon  #426 ideas for the AoA limiter, and clean up tabs.