Map updates.

Add support for different map types (street/satellite) and different map
providers.
Support finding real world addresses on the map.
Add Maidenhead locator converter.
Add Beacons.
Allow data sources to be selected by a user.
Add context menu to allow setting an object as a target, setting center
frequency and adjusting display order.

plugins/feature/startracker/startrackerworker.cpp

@@ -391,7 +391,7 @@ void StarTrackerWorker::sendToMap(QList<MessageQueue*> *mapMessageQueues, QStrin
         swgMapItem->setImage(new QString(image));
         swgMapItem->setImageRotation(rotation);
         swgMapItem->setText(new QString(text));
-        swgMapItem->setImageFixedSize(1);
+        swgMapItem->setImageMinZoom(3);
 
         MainCore::MsgMapItem *msg = MainCore::MsgMapItem::create(m_starTracker, swgMapItem);
         (*it)->push(msg);