first commit
impl search frame
impl book register
impl lending
impl my page
impl book register and search
impl some scripts
search books in 'and' style
impl many apis
impl many apis
impl notification to reserver in the lending script
add wish book table
forbid to edit isbn
use 'currval' to return id after insertion
use BatIO.read_all
impl purchase action
set time zone
fix page counter
don't search for books in wish book
add wish_book cgi