HBASE-8768 Improve bulk load performance by moving key value construction from map phase to reduce phase (Rajeshbabu)



git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1508941 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9034 hbase-daemon.sh swallows start up errors -- ADD

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1508944 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9049: Generalize ServerCallable creation to support custom callables

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1509015 13f79535-47bb-0310-9956-ffa450edef68