Move cli to docopt [Closes #6]
Update README
Fix editing mistake
Fix docopt conversion mistakes
Add download functionality to gmsync [Closes #1]
Add default value for output
Change backward variable naming
Fix potential output path issue on Windows

Thanks to @unconditional for spotting this.
Fix help message formatting
Refactor authentication flow
Add uploader-id option

This maps directly to the uploader_id argument to Musicmanager.login.
See http://unofficial-google-music-api.readthedocs.org/en/latest/reference/musicmanager.html

Thanks to @unconditional for suggesting this.
Add short option for uploader-id
Change e-mail address missed previously
Update installation instructions
Update documentation
Update usage docs