HBASE-8860 TestTableLockManager#testTableReadLock times out sometimes

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1499588 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8857 TestGet#testDynamicFilter fails sometimes

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1499593 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk-gd