tomahawk-resolvers: add Google Music resolver
tomahawk-resolvers: remove custom CryptoJS for Google Music
tomahawk-resolvers: use inbuilt asyncRequest instead of custom _request
tomahawk-resolvers: readd empty scripts section to Google Music resolver
tomahawk-android: add more information to Google Music tracks
Merge pull request #51 from tilal6991/master

tomahawk-resolvers: add Google Music resolver