CBQE-0: Fix KeyError: 'results' in viewquery task

Change-Id: Ic69fa8a99e271347cbedee8cf5679a31166a314a
Reviewed-on: http://review.couchbase.org/32763
Reviewed-by: Iryna Mironava <irynamironava@yandex.ru>
Tested-by: Iryna Mironava <irynamironava@yandex.ru>
CBQE-0: reimplement min_changes test

Change-Id: I2d87917ccb5fa62a29ab5d015a80ac01777ff9da
Reviewed-on: http://review.couchbase.org/32795
Reviewed-by: Iryna Mironava <irynamironava@yandex.ru>
Tested-by: Iryna Mironava <irynamironava@yandex.ru>
CBQE-1450 - bucket creation with names as mentioned in MB-5844(.delete,isasl.pw,ns_log,_replicator.couch.1,_users.couch.1)

Change-Id: I6a540333721449c967296948de86f16ed2a6567a
Reviewed-on: http://review.couchbase.org/32809
Reviewed-by: Meenakshi Goel <meenakshi.goel@globallogic.com>
Tested-by: Meenakshi Goel <meenakshi.goel@globallogic.com>