Merge pull request #142 from deini/dev

Disabled Deezer temporarily (until available in the US)
refactored scraper to add an images array of all images
added setArtistImage function and refactored loadArtistImages to use it
added setArtistImage function and refactored loadArtistImages to use it
added comments
Merge pull request #143 from nickescallon/dev

Now uses multiple images from scraper, selecting a random one to display