Initial release of BLE MIDI. It works in both directions. Outgoing messages are timestamped. Incoming messages have their timestamps removed and ignored.
To use in CircuitPython, simply install the [Adafruit CircuitPython bundle](https://circuitpython.org/libraries).
To use in CPython, `pip3 install adafruit-circuitpython-ble-midi`.
Read the [docs](http://circuitpython.readthedocs.io/projects/ble_midi/en/latest/) for info on how to use it.