Don't pop qWarning during unit tests

Add Terrain toggle to MapScale control

Zoom buttons move to MapScale control

Return a empty QString instead

QGCCameraControl::storageFreeStr(): use QGCMapEngine::storageFreeSizeToString()

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Restore QGC to its normal UI layout (buttons on toolbar)

Fix double tile download error reporting

Prevent double reporting of tile download errors

Offline Maps: Allow custom build settings overrides

Get rid of QGCView, QGCViewPanel and FactPanel. All messages and dialogs are now handled in the root window.