Return to divelist even from "further away"

If one browses the application more than one step (e.g. details, gps fix
list and preferences), we need to pop the stack a bit more to get back
to the dive list. This will clear the whole stackView as I saw no harm
in discarding the history when one jumps back to the dive list.

Signed-off-by: Miika Turkia <miika.turkia@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

qt-mobile/qml/main.qml

@@ -41,7 +41,9 @@ MobileComponents.ApplicationWindow {
 			Action {
 				text: "Back to Divelist"
 				onTriggered: {
-					stackView.pop()
+					for (var i=stackView.depth; i>1; i--) {
+						stackView.pop()
+					}
 				}
 			},
 			MobileComponents.ActionGroup {