Instead of hardcoded "QGroundContorl" strings

This makes VehicleComponents reusable from core plugin without
requiring override of prerequisiteSetup

Made QGCCorePlugin derive from QGCToolBox and expose everything through the same mechanism as everything else.

Android done.

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

Clicking on the sumarry titles enters the edit mode
On the tests with users, they always clicked on the
title (because it resembled a button or something) and
nothing happened. it was a bit confusing to have the
same information in two places and only one of them
being clickable.
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>

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

This provides a better workflow for firmware upgrade

Add scroll height indicators to Flickable