HBASE-9033 Add tracing to ReplicationSource and enable it in tests

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1506639 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9034 hbase-daemon.sh swallows start up errors

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1506717 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9022 TestHLogSplit.testIOEOnOutputThread fails; DEBUGGING

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1506783 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9022 TestHLogSplit.testIOEOnOutputThread fails; DEBUGGING PART2

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1506820 13f79535-47bb-0310-9956-ffa450edef68