HBASE-10272 Cluster becomes nonoperational if the node hosting the active Master AND ROOT/META table goes offline



git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1555312 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9941. The context ClassLoader isn't set while calling into a coprocessor

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1555328 13f79535-47bb-0310-9956-ffa450edef68