add option to visit all metadata
add option to visit all metadata

couchbaselabs/priority15,vmx/cbagent,couchbaselabs/litmus,couchbaselabs/priority15,ronniedada/litmus,ronniedada/litmus,couchbase/cbmonitor,mikewied/cbagent,couchbase/cbmonitor,pavel-paulau/cbagent,couchbaselabs/litmus,couchbaselabs/priority15,couchbase/cbagent,couchbaselabs/litmus