Create and coorectly populate a new authors table.

The simple author storage currently used is a poor compromise devised
to just "get it working".  Expanding useage of the database to other
apps exposes the fundamental errors and this is meant to fix that.
new file:   notes.asc
Yay for books with ISBNs!

Now for the non ISBNs
Minor prep for next step.
Minor fixes for databse and book.
Re-indent
Edits.
Refactor so we can reformat a single book by ISBN.
Add more notes.
Add code to handle books with no ISBN.
Added fixup call in add book handler.