Flight GpsLogger

Invalid date

An additional RAM buffer is added, it’s used to store the points that could not be sent (for example, because of Internet connection problem).
Group sending of points is added (to improve power saving).
The code is optimized to allow frequent sending of points (till 1pts/sec).
OSM and DropBox uploads work correctly now, GDocs (Google Drive) is disabled (API changed).
Export/import of settings is added, the settings can be imported directly from an email attachment (new permission will be asked).