CBQE-0: fix UI tests

Change-Id: I21a39b132978d9946248385e19c6ed862eb62a4e
Reviewed-on: http://review.couchbase.org/31356
Reviewed-by: Iryna Mironava <irynamironava@yandex.ru>
Tested-by: Iryna Mironava <irynamironava@yandex.ru>