MB-22702: mnPoll: call next doCycle after http response
MB-22702: mnPoll: call next doCycle after http response

Change-Id: Iac55b0f0140b7f3dfadf0f6ce138a8e0e3bdbf30
Reviewed-on: http://review.couchbase.org/81242
Tested-by: Pavel Blagodov <596b71e626fc58dbdad141b817770e3e4810bb9b@gmail.com>
Tested-by: Build Bot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Michael Wiederhold <a17fed27eaa842282862ff7c1b9c8395a26ac320@couchbase.com>

membase/ns_server,membase/ns_server,membase/ns_server,membase/ns_server,membase/ns_server,membase/ns_server