Add request to retrieve tokens
Get authentication tokens
Get refreshtokens
Create URL for getting a users playlists
Get playlists for a given user
Mock post requests in tests
Add test for authentication
Set authentication on the Api class to make it easier to make calls
Retrieve accesstoken when making a call that requires it (so far for users playlists)
Refactoring. Moving out credentials from the httpmanager.
Refactor
Update tickbox for Playlists for specific user
Merge pull request #2 from thelinmichael/authentication

Authentication and looking up user's playlists