Playing books without text

[NajaWulff]

Being able to play a book consists of being able to hear the recordings it contains, pausing it, jumping around in chapters via the forwards and backwards buttons, viewing and jumping to the elements listed in the contents page.
When stopped and exited at a particular chapter or paragraph, the player should resume playing from that position when asked to play again.

Point, however: When a book is done playing, I am not sure how the player should react. Should it return the user to the book shelf?

Borderline cases for testing include:

1. Click 'play', and 'pause'
2. Click 'forward' and 'backward'
3. Exit the book at a chapter, and resume playing it
4. Exit the book at paragraph and resume playing it

Conclusion
No problems (with the obvious exception of the fact that IE9 does not skip to the right chapter after being closed and re-opened – but I think this problem has been reported sufficiently). 

[NajaWulff]

This issue of course needs to be assigned to me, and as soon as I have figured out the particularities of the GitHub interface, it shall be.