UI Tweaks for all mobile platforms.

* Remove leftover debugging message
* Fix segfault on Linux at close for #3164

- Also fix vehicle selector dropdown in toolbar

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>

Now I'v discovered a Slot that returns a bool, this is not very
good because Qt expects a slot to have the same return type
as the signal, void, always.
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>

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.

- Pervasive change to automatically connect to known board types
- Lots of additional changes along with this:
- More exposure of objects/properties to Qml
- Much restructuring in LinkManager and LinkManager clients

- Pervasive change to automatically connect to known board types
- Lots of additional changes along with this:
- More exposure of objects/properties to Qml
- Much restructuring in LinkManager and LinkManager clients

- Pervasive change to automatically connect to known board types
- Lots of additional changes along with this:
- More exposure of objects/properties to Qml
- Much restructuring in LinkManager and LinkManager clients

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>

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>

Too used to Kernel Formatting Style.
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>

The dock widget opening system had several issues,
1 - it didn't deal with translations
2 - it didn't deal with accelerator keys
3 - it crashed if passed a invalid string (like when using KDE, happened
for all options)

This new way of using the views are slightly different:
1 - no more string comparissons, use integer comparissons (much faster)
2 - do not use a convoluted if/else - switch simplify.
3 - do not create two different static variable strings for the same stuff
4 - create an enum / an vector of strings (the enums bein an index of it)
to acess the correct view.

The overall code is clear than the old one, and faster.
the only point where the code isn't as clear is on the call to
showDockWidgetAction, since we passed a string that had the
name of the Widget, but now the action only holds the index
for the name in the string vector, I first need to get the
correct string and send it.

Tested here closing and reopening the app and verifying that
the dock widgets that where left open are still open when
reopening the application.
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>