add individual service definitions
fix MusicServices proto rel
export upnp wrappers @ .Services
add .deviceDescription
Merge branch 'services'
Merge branch 'master' of github.com:mrose17/node-sonos
lint and fix albumArtURI typos
contributors, licence, bugs & repo in package.json
position and duration in seconds
add albumArtURL to .currentTrack() response
remove TODO.md

TODOs now kept as issues on GitHub
update docs