closes#313, Blacklist known ad sites from scraper detection
closes#306, some New York Times ads prevent page from being recognized
closes#308, attachment import bug
currently, the ad site blacklist is located at the top of ingester/browser.js. at some point, we may want to switch this to a database table.
addresses #327, Scrapers should either take snapshots or use URL field
closes#309, Integration server prevents Zotero from loading in multiple instances of Firefox
In other words, show both "Shakespeare" and "Shakespeare, William" in the drop-down, and if the latter is chosen, save both fields
One issue is that since the autocomplete is by default limited to the width of the textbox, longer entries get truncated (though you can see them with a mouseover), and that may not be easy to fix.