Goodreads ratings in Audible

Displays Goodreads rankings for books in Audible store Displays Goodreads rankings for books in the Audible store. V0.0.5: Add support for "2 for 1" sales pages. V0.0.4: Add support for "2 for 1" sales pages. Support in HTTPS pages. Support audible.de V0.0.3: Better support for collections on sales. V0.0.2: Added links to author pages in Goodreads. Added ratings when hovering over a book catalog.