Reset compass offsets to previous if cal cancelled

Also fixed problem with setup complete signaling after positive
calibration completed

APM Stack Compass Calibration

Review iterations over QStrings

There are many ways of iterating over lists in C++/Qt.
In the specific case of QStrings, it is known [1] that using
foreach with const references avoids the creation of new
QString objects in each iteration, reducing the time consumed
by the loops.

[1] https://blog.qt.io/blog/2009/01/23/iterating-efficiently/Signed-off-by: Anselmo L. S. Melo <anselmo.melo@intel.com>

Show APM Airframe config at appropriate times

Also added missing FRAME types

APM  plane fixes

APM Power Config

Use ardupilotmega mavlink dialect as main dialect

This way QGC can support both PX4 and APM Flight Stack messages at the
same time.

Show Apm version info when flashing

Esc key fix

Even though it’s wrong!

that was connected to showNormal, which always led to a smaller
minimized window irrespective of whether the applicaton was
full screen or not. Now it checks and always returns to maximized.

Handle dynamic sizing of setup buttons

Firmware specific supported mission commands list

Supports connecting a Fact to a QSettings value

Minor fixes to TTS.

add rotation for Stryker VTOL

Fix missin Safety Config warnings

Add the initial stub for the AirFrame configuration for APM

This commit introduces the APM Airframe configuration. The interface
is the same as the PX4 one, but the way we deal with the uas is a bit different

Since the APM stack doesn't provide a xml with airframe definitions a
new one was created by hand with only the values that we need, wich will
trigger a download of the parameters file from the mavlink github

Now it correctly handles the FRAME variable and it's faster
regarding the download of the parameters for each type of Frame.

Only show Airframes for ArduCopter, not for ArduRover nor ArduPlane
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>