HBASE-9282 Minor logging cleanup; shorten logs, remove redundant info

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1516288 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9287 TestCatalogTracker depends on the execution order

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1516291 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9210: hbase shell -d doesn't print out exception stack trace

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1516298 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9263 Add initialize method to load balancer interface

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1516309 13f79535-47bb-0310-9956-ffa450edef68