Switch the default search engine on www.FreeBSD.org to use DuchDuckGo
rather than our own (poor) search.cgi.  Provide results from www, lists,
wiki and forums.FreeBSD.org.

Discussed with:	peter, gjb
Approved by:	doceng (gjb), core (emaste)


git-svn-id: svn+ssh://svn.freebsd.org/doc/head@45919 c2e8774f-c49f-e111-b436-862b2bbc8956
Always search with https.


git-svn-id: svn+ssh://svn.freebsd.org/doc/head@45920 c2e8774f-c49f-e111-b436-862b2bbc8956