HBASE-9564 Intermittent TestSimpleRpcScheduler#testHandlerIsolation failure



git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1524415 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9534: Short-Circuit Coprocessor HTable access when on the same server

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1524514 13f79535-47bb-0310-9956-ffa450edef68