To contribute, just issue a pull request. Include tests, please.
If you add any new files please make sure you add the source header to the top of that file.
/*
* DF-BluetoothV3 from DFRobot
* https://github.com/fusion94/DF-BluetoothV3_Arduino
*
* Copyright 2011-2013, http://fusion94.org
* Licensed under the Mozilla Public License Version 2.0
*/