SOLR-4262: Replication Icon on Dashboard does not reflect Master-/Slave-State (merge r1429248)

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1429249 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4262: Replication Icon on Dashboard does not reflect Master-/Slave-State (merge r1429252)

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1429253 13f79535-47bb-0310-9956-ffa450edef68