HBASE-9306. [0.92] TestAdmin.testCreateBadTables fails occasionally

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.92@1517429 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9304. [0.92] TestDrainingServer fails occasionally

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.92@1517431 13f79535-47bb-0310-9956-ffa450edef68