The hover thrust param also changed the thrust scaling in Stabilized mode.
However if the hover thrust is very low (e.g. below 20%), the throttle
stick input becomes very distorted.

- no airframe changes the default
- it does not make much sense to be able to configure the 0.1 threshold
  but the 0.3 threshold for ground contact detection cannot be configured.

radio_status: change 'fixed' field name to 'fix' so it does not clash with 'fixed' floating-point notation on the IDL generation

The user does not need to configure this, so we can hide it from the UI.

Clarify which  componets is on which index for the item array

At the moment it is only declared a component, PX4IO.

Instead of calling _updateSetpoints(), that also sets the thrust setpoint,
which is then overwritten again.

It's confusing and there is a corner case where the result is incorrect:
*= 0 will not set the variable to 0 if it's already NAN.

This fixes the build with Python 3.7.

The typhoon has a 6011_typhoon_h480.post script that got matched as well.
Now we exclude all files that contain a dot (apparently it's not so easy
to do generic pattern matching in a portable way, but this works).