Debounce saveOptions for text input fields
Debounce saveOptions for text input fields

If doiResolverInput and shortDoiResolverInput are typed in manually
(i.e. not copy/paste), they can fire saveOptions rapidly. Debounce them
so that Chrome Sync doesn't too many sync requests.

mdmower/doi-resolver-chrome,mdmower/doi-resolver-chrome,mdmower/doi-resolver-chrome