Merge pull request #4 from ecthiender/master

Loading of 3D scene from external file
Merge pull request #5 from ecthiender/master

Adding initial code to render books dynamically from a database
Add cover faces to books
Merge branch 'merge' of 192.168.100.17:/media/music/Projects/library into merge
Adding interaction for click on book
       - Open the url specified in the db for the book.
       - Removing dependency on threex.deomevent.  Moved the mouse event handling code to js/main.js
Loading back scene version 4 instead of 2
Change books

  Changed the list of books to represent more relevant books.
Add a simple loading message