first pass at creating a book, it works, but I have messed up the series-div* html in book.html

README

@@ -31,13 +31,13 @@ python3 main.py
 ### TODO: 
 	- when remove a Parent book from a series, what do we do?
 		(remove all sub books from series too?)
-	- need to add book to sub_book
-	- need to delete 1 book from sub_book
-	- need to create loan
+	- need to add sub_book to parent book
+		** okay, tried to overload /book/<id> .. too hard, need to overload /book if anything... so add_sub button needs to call different URL, and then maybe this would work? ( if parent, then show extra bit AND, if parent, add the sub_book_link when adding new book???
+	- need to delete 1 sub_book from book
 	- need to add books to loan (on loan page, and via a book search?)
 	- need to delete book from loan
-	- need to delete loan
 	- need to delete all classes (and watch for referential integrity)
+		* book, condition, covertype, genre, loan
 	- show books on shelf list
 	- show books to buy view / printable
 	- with ORM: should I lazy load all books (ajax the 2nd->last pages in, or not use ORM, and do a quick db.execute()....)