Merge pull request #1 from hugovk/master

CI and stuff
Added the 'collaboration.py' example
spotipy
auth-based actions
Merge pull request #2 from ryankicks/master

spotipy
Added examples, improved docs
simple oauth flow for getting a spotify access token

added an example that requires oauth
Merge pull request #3 from econchick/oauth2

simple oauth flow for getting a spotify access token + example
Updated search tests to match updated api
Repackaged for saner imports
Remove duplicate version history
Added paging support and example.
Version number
UI tweak to oauth example
Merge pull request #4 from hugovk/patch-1

Remove duplicate version history
Added support for token caching and refresh
Add country parameter to artist_albums

If country parameter is passed to artist_albums call, only
the albums available in the provided country will be returned
Improved oauth error handling/new playlist example
tools for making oauth easier for examples
improved oauth examples