metakv leaks passwords to the log file

[ns_server:debug,2015-03-24T14:32:59.767,n_0@127.0.0.1:<0.284.0>:menelaus_metakv:handle_mutate:119]Updated /remoteCluster/6417a7b57e449bb0e99e2da6b640193d to hold

{"id":"remoteCluster/6417a7b57e449bb0e99e2da6b640193d","uuid":"6417a7b57e449bb0e99e2da6b640193d","name":"aaab","hostName":"127.0.0.1:9000","userName":"Administrator","password":"asdasd","demandEncryption":false,"certificate":"","Revision":null}