Revert "Spit out the scraperwiki_name in the index of scrapers"

This is always blank since ScraperWiki scrapers moved to the app in
6a1ebeb1c1de3d2e19c165806e1ce2f3b5a9e42e

This reverts commit 06de74e3414b01e2a79fb152389f3e65672b190c.
Revert "Fix up tests after adding scraperwiki_name output"

This reverts commit 46c9dbc1c7acebf85b54c0853768a9461c179f2e.

Conflicts:
	spec/unit/scraper_server_spec.rb
Also list authority names when you don't specify one