Back to regexing the HTML.

JSON API data source is now optional (`:use_json_api`, defaults to false).
Last replies in tooltips (`:write_replies`, defaults to true).
Images for last replies (`:image_replies`, defaults to false).
API/HTML request delay changed to 1.0s.
Added `:req_delay_media` setting to control the request delay for thumbnails, defaults to 0.5s.
`:retries` now defaults to 3
The fetcher will now check and recover missed threads using 4chan's `catalog.json`.
Rescue EOFError.
jQuery 1.9.1
Time for an update.