- added extra bindings
- reworked the view axis (usually bound to the hat); to move at a better rate.
- trim to elevator position. When selected this will remember the current position and when the joystick is centered it will apply this as the trim. Very useful for carrier approaches; and also it helps to do something that is much easier with loaded controls when you can feel the pressure being reduced by the operations of the trim switch
- Engines control now use the same axis methods as the flight controls; which allows for these to have an inverted checkbox.
- Change the axis combo boxes to instead show a popup dialog (much like the button config). This is better because the items can be grouped sensibly.
- Changed the way that the "all engines" controls work - the dialog binds these to a "engines/XXXX-all" for which there is a listener in controls.nas which propogates over all engines.
- Added extra bindings to both the buttons and the axis dialogs.
- moved the "None" button to the bottom and renamed it to the more comprehensible "Remove assignment"
