Adding mux GStreamer plugin libraries to Android (to enable video recording on Android)
Adding an option to limit the amount to disk used for saving videos
Adding an option to show/hide the REC button (allowing plugins to handle the recording in their own way)
Adding simple frame grab to file

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

Instead of hardcoded "QGroundContorl" strings