limited lists to 5 10 or 15 items
Rename _scraper -> scrapey
Store jquery-parsed body on scraper instance not globally

This seems like it was a bug -- lucky to have worked at all with the
asynchronous fetching and processing.
Call toArray before attempting to slice

The version of cheerio in use appears not to provide a .slice
method. Don't understand why this was working before or why I believed
it to be OK if it was not working.
Convert cheerio wrapped sets to native arrays
Disable WashWire