Regression tests: Accept CONNECT_ERROR as acceptable for ETIMEDOUT

Change-Id: Iaac29d4e6b23f895755ea5712c26217904c87284
Reviewed-on: http://review.couchbase.org/33393
Reviewed-by: Brett Lawson <brett19@gmail.com>
Tested-by: Mark Nunberg <mnunberg@haskalah.org>