ACCUMULO-3046 swapped messages for confusion-free debugging
Merge branch '1.6.1-SNAPSHOT'
ACCUMULO-3043 Limit to valid and sensitive properties pulled from CredentialProviders

We only check CredentialProviders for Sensitive Property's, as such,
when we list out all Property's, we should also adhere to that same
practice.
Merge branch '1.6.1-SNAPSHOT'
ACCUMULO-3040 Create a JXM MBean for high-level Replication Metrics

Consolidates creation of replication metrics into a class that both
the replication servlet for the monitor and the JMX endpoint can
reuse.