Query (Jenkins): add blackfriday repo.

Change-Id: I24458af8a44ab40be534f98dccceb9663fdd9d74
Reviewed-on: http://review.couchbase.org/35923
Reviewed-by: Chris Hillery <ceej@couchbase.com>
Reviewed-by: Eric Limare <eric.limare@couchbase.com>
Tested-by: Eric Limare <eric.limare@couchbase.com>