Update index.js

Using Spotify API. 
Parsing JSON. 
Deleted Cheerio. 
Using Artists photo's instead of album art. 
Play - Pause detection
Deleted Cheerio module and switched to spaces
Switched to spaces forreal
Relative image paths, added Images
Merge pull request #1 from Cariah/master

Fixed spaces and relative Image paths
Commenting stuff
Comment changes
Merge pull request #2 from Cariah/master

Comment stuff / renamed function : setLockScreenIfTrackChanged
Update index.js

"lockScreenImageDir" typo
Merge pull request #1 from Steynno/master

Query the Spotify API for image with better quality, added special handling & images for pause/play.