#4 Should add support for Spotify uri format

ie.:

spotify:album:7hujgWIBHug0Txn1U1euPt

spotify:track:70k85kaJybJnXdp7WU1bnV

spotify:artist:3pc2UoWSyNGqrh5cxxe9vm

spotify:user:vlw.jr:playlist:4dpxuXsQahw5KvrJazSlSp

spotify:playlist:0vchTQFhhqKRHtMjk0i6uY

This would also allow us to download entire artist profiles

Added on v1.3.0