CBQE-0: fix viewquery task for timeout error

Change-Id: Ib2ef6857e6ab92f30cf3fecb7fb81c261e870eba
Reviewed-on: http://review.couchbase.org/29658
Reviewed-by: Iryna Mironava <irynamironava@yandex.ru>
Tested-by: Iryna Mironava <irynamironava@yandex.ru>