Fix the corner case of a system running on localhost using the network and the loopback address in parallel. Force it onto the loopback interface.

Instead us a Toolbox concept which hangs off of QGCApplication

When you selected via the Menu to go to Fly Mode, the QML
toolbar didn't followed the option, and if you selected
via the menu to go to all the three possible views (setup,
fly and plan) the menu would be all-selected.

This tries to keep consistency of things.
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>

Too unstable for CI at the moment

It was kind of big...