HBASE-4360 Maintain information on the time a RS went dead - addendum (samar)

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1500064 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8799. TestAccessController#testBulkLoad failing on trunk/0.95

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1500088 13f79535-47bb-0310-9956-ffa450edef68