Allow the user to show the current volume from MPD status via the
`format` and/or `tooltip-format` configuration options.
The values are provided by libmpdclient and are integers, generally
between 0-100 (without %). Values above 100 are also possible, as mpd
output plugins like `pulse` support volumes above 100%.
Signed-off-by: Sefa Eyeoglu <contact@scrumplex.net>
- Add MPD module option `password`, and document it.
- Add logic to send the password, directly after connecting to
MPD.
Fixes: #576
Signed-off-by: Joseph Benden <joe@benden.us>