HBASE-9261 Add cp hooks after {start|close}RegionOperation

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1550990 13f79535-47bb-0310-9956-ffa450edef68
HBASE-10164 Allow heapsize of different units to be passed as HBASE_HEAPSIZE



git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1550996 13f79535-47bb-0310-9956-ffa450edef68