Fact* espVersion = getFact(FactSystem::ParameterProvider, MAV_COMP_ID_UDP_BRIDGE, "SW_VER"); crashes unit test if the parameter does not exist (which is exactly what the call is trying to establish).

Also, added a missing method on AutoPilotPlugin as a public
pure virtual method (the inheritances already implemented it as a
slot, so the new Signal syntax didn't worked because the base class
didn't had that method)
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>

First commit of modernizarion of Qt signal connections,
the new signal connection is very userfull because of a few
nice things:

- it's checked at compile time instead of runtime
- it can connect to any function or method, so we don't need
to use slots anymore
- it's way faster because it doesn't need to work with string
comparisson, but it's basically a direct call.
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>

Users are getting confused because we are missing images. Will put back
new fancy version once we get new airframe config plus auto-generate of
images sorted out.

At that point the vehicle is gone, so need to to clean it up

Takes less real estate and flows better and small displays

Also fixed problem with setup complete signaling after positive
calibration completed

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>