OP-938 Stop AH from running when board is not armed
OP-938 Add an "Exp" to throttle stick when in AH to make it useable

Conflicts:
	flight/modules/ManualControl/manualcontrol.c
OP-629 Block arming on all navigation based modes

Conflicts:
	flight/modules/ManualControl/manualcontrol.c
OP-938 Reduce deadband to +/-10% around 0
OP-938 Add programmable EXP and max full throttle climb/descent rate
Merge branch 'amorale/OP-938_ah_improvements' into next

Conflicts:
	flight/modules/AltitudeHold/altitudehold.c
	flight/modules/ManualControl/manualcontrol.c
Merge remote-tracking branch 'origin/next' into thread/OP-952_Scope_Polish