Remove splash screen. Fixes #2028

Fix native function setting in android serial port

Ui changes

More editor changes

More UI changes for tablet

Getting rid of warning on Mac OS

Delete Icons for Don

Mission Editor usability changes

That was easy.
Merging

MapSync Icons

Updated existing icon and added a new one for when things have changed.

Switch to windeployqt to pull in install dependencies

Fixing map cache for Qt 5.5.1

Map cacheing for < 5.5.0 was broken and we were using whatever default was provided by QtLocation. Now we're properly creating and configuring a cache manager.

Adding Qt Location headers for Qt 5.5.1

This only affects the build when using Qt 5.5.1. Other versions are unchanged.
So far only tested with Mac OS.

Conflicts:
	QGCSetup.pri

Arrowhead for vehicle heading identification.