fix type of password fields
fix type of password fields

Change-Id: I015de55d28c354cb77ade7ce831033d5bb39ce37
Reviewed-on: http://review.couchbase.org/23711
Tested-by: buildbot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Pavel Paulau <dd88eded64e90046a680e3a6c0828ceb8fe8a0e7@gmail.com>

couchbase/cbmonitor,couchbase/cbagent,pavel-paulau/cbagent,vmx/cbagent,mikewied/cbagent,ronniedada/litmus,ronniedada/litmus,couchbase/cbmonitor