[spotify-metadata] Actually add iconBackground and iconWhite pngs. Fix indentation in metadata.json.
[rdio] Use official rdio blue in icon background (#008fd5)
[deezer] Use black icon background.
[rdio-metadata] Use official rdio blue in icon background (#008fd5)
[hatchet-metadata] Fixed regexps in canParseUrl and lookupUrl functions.
[soundcloud] Replaced tabs with spaces. Fixed indentation.