Changes

Checked and modified search engines list; business.com - the search
didn't work and even a manual search on NetSurf isn't working - REMOVED
omgili - now redirects to webz.io, which appears to need authentication
and has an API but no HTML search - REMOVED ask, youtube - don't display
any results on NetSurf - HAVE LEFT IN FOR NOW IMDB - the search doesn't
appear to ever load and the IMDB homepage doesn't display correctly on
NetSurf - HAVE LEFT IN FOR NOW ESPN - host no longer exists and the
search on espn.com doesn't work on NetSurf - REMOVED Wikipedia -
appeared to have an extra character which was preventing the search
working correctly - FIXED Stract - this is a new open source search
engine - ADDED
In addition I have promoted DuckDuckGo and Wikipedia from the bottom of
the list to where the two removed entries near the top were, to try and
keep most default search engine preferences from changing.