MozStumbler v0.13.0

* Add local database for more reliable report logging (@illarionov)
* Add "upload now" button (@illarionov)
* Use Android Sync service to schedule uploads (@illarionov)
* Remove Quit button and stop service when not scanning (@tamcap)
* Add new UI buttons (@tamcap)
* Add "you are here" marker to map (@cpeterso)
* Block Finland's VR train SSID (@aschmitz)
* Update Spanish translation (@rodmoreno)
* Update Dutch translation (@ActuallyRuben)
* Update Finnish translation (@ojarva)
* Update Russian translation (@freekzy)
* Update French translation (@pl6025)