added composer.json with guzzle requirement
updated readme to include testing and contributes sections
updated dependencies
SpotifyLookup now satisfies phpcs
added some tests
Updated spotifyApi.php and SpotifyLookup.php
completed SpotifyLookup.php's unit tests
added new setter and getter into tests
comment block fix
updated spotifyApi so all private vars are now using setters and getters
more unit tests (yay!)
fixed silly typo from copying and pasting!
completed unit tests for searching
merged issue-2 branch into default/master