remove files added by bad build script
update libZotero
make child notes attached to items actual Zotero.Item
update trashing requests and dialog widths

 - trash/untrash/delete requests now use multi-item operations from v2 API
 - widths on cite items dialog box are slightly improved. Still a problem that
after closing first dialog, freshly rendered interior elements have 0 width
when we check.
remove remaining use of jQuery .live

Preparing for jQuery >= 1.9
Most remaining uses were for mobile events. For now the functionality is just
exactly duplicated with J(document) binds, preserving the poor performance.
This can be done better, but the jquerymobile DOM management makes it more
complex.
add pref to prefer itemKey in url to itemsList form

closes #16
don't use old Zotero.Item dataFields in template
destroy dialogs instead of closing them