Setting up mopidy and MPD/http clients

Mopidy Pi

Install mopidy: ##N.B: You might need to do this as per instructions on `https://docs.mopidy.com/en/latest/installation/debian/`
`sudo apt-get update && sudo apt-get install mopidy` 

Set the mopidy to run automatically via `sudo systemctl enable mopidy`

Now we need to set up configuration files.

Since we're going to be running mopidy as a service, we need to edit `/etc/mopidy/mopidy.conf`(see https://docs.mopidy.com/en/latest/service/#service)

Add the following to to configuration file:
```
[mpd]
enabled = true
hostname = ::
```
This sets the MPD server of mopidy to listen on all ipv4/6 interfaces.

Now we'll set up a web-client.

Install mopidy-moped with `sudo pip install Mopidy-Moped` (`pip` is a client to automatically handle python packages, since mopidy is python based, most extensions are wrappped up as normal python packages)

We also need to enable HTTP server by adding the following to the configuration file:
```
[http]
enabled = true
hostname = ::
```
and
```
[moped]
enabled = true
```

To use bluetooth we need to upgrade raspbian:
```
sudo apt-get dist-upgrade
sudo rpi-update
```

Also:
connect to device with bluetoothctl
Configure pulseaudio to run as daemon ?
edit /etc/bluetooth/audio.conf ?
add mopidy to audio usergroup ?
Configure pulseaudio to allow socket access ?
Test sound with mplayer, aplay, gstreamer
Set up start script to automatically pair with speakers
Python script to automatically reconnect speakers