HBASE-9772 Normalize new client default values

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.96@1535150 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9785 Fix heap size reporting in HRegion

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.96@1535173 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9821 Scanner id could collide

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.96@1535199 13f79535-47bb-0310-9956-ffa450edef68