Book Manager +

This extension does the following:
- Removes the delete question button from the question tab order
- Disables the enter key from deleting a question
- Adds a confirmation to exit page if page is in the middle of processing
- Adds ability to download the quiz, in csv format, for backup in case of quiz/question loss or error
- Adds ability to show the quiz sorted by page number, with the question number (second column) clickable to enable direct navigation
- Adds a reading skill count which dynamically updates