CBQE-0: handle "Connection reset" that generate testrunner

we  try to handle now it like cccp error

Change-Id: I0544d0f353c16c5d424f0028a0d04ebe1007871f
Reviewed-on: http://review.couchbase.org/32424
Reviewed-by: Iryna Mironava <irynamironava@yandex.ru>
Tested-by: Andrei Baranouski <andrei.baranouski@gmail.com>