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

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1516287 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9287 TestCatalogTracker depends on the execution order

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1516292 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/trunk@1516293 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9263 Add initialize method to load balancer interface

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1516310 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk-gd