series does not deal with calcd_rating... 
	(on edit could, recalc as a catch-all, and obviously if we change a single book's rating, we should re-calc)

alter a condition, covertype, etc. and its not in drop-down list (even though db look via index is correct, e.g books.html shows updated covertype)

book form is not validating (year published)
save book, notes/forms not sticking
tried publisher, firstly the <input ...> has id="publisher", but not
name="publisher", so request.form does not have field publisher, hand-hacking that and then int/str mismatch... I think need to read up on how to take select 'value' as the int value of the chosen option