Add support for checking if a user's Your Music library contains a track
Add missing sys import
Fix user having to login after first token refresh

Fix issue where the get_cached_token method returns None instead of the
cached token object, meaning that users have to login again when the
initial token expires. The problem has two aspects:

- The first time the user calls get_cached_token after token
  expiration, the token is refreshed but the "new_token_info" object is
  not returned.

- The second time the user calls get_cached_token after token
  expiration, the scope check fails, because the refresh_access_token
  method didn't include the "scope" key when it cached the new
  token_info results.
Merge pull request #19 from mattduck/fix-auth-token-refreshing

Fix user having to log in after token refresh
Moved util module into main package
moved util into the main package
Updated version number
Updated version number for pip
Merge pull request #16 from thelinmichael/add-yourmusic-contains-track-endpoint

Add support for checking if a user's Your Music library contains a track
refacord to support playlist editing
Added authtests
Fixed up the packaging a bit
Updated README.md with changes
reuse testing playlist for every test
Fixed refresh token problem
Renamed spotipy to client to avoid confusion
Added docs tree
Fixed module to include client
trying to get readthedocs to build
fixed abspath error