HBASE-9286 [0.94] ageOfLastShippedOp replication metric doesn't update if the slave regionserver is stalled (Alex Newman)

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.94@1520646 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9455 Port HBASE-7113 'TestGzipFilter is flaky with jdk1.7' to 0.94



git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.94@1520715 13f79535-47bb-0310-9956-ffa450edef68