Move ArduPilot preflight check handling to generic QGC

The X-UAV Mini Talon is a V-Tail plane. This commit adds the
new group "Plane V-Tail" together with a svg image for the
new group.

Don't show compass orientations for fixed orientation vehicles.

Prompt for Reboot after compass cal

This reverts commit 0507fb9b.

Adding missing qgcView to QGCMapPolygonVisuals instance in SurveyMapVisual.qml

Since disconnectAll will kill this controller before it gets to next
statement

PX4 setup: Put sensors before radio to create the right affordance: We want the user to handle this first