HBASE-9445 Snapshots should create column family dirs for empty regions

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1591981 13f79535-47bb-0310-9956-ffa450edef68
HBASE-11051 checkJavacWarnings in test-patch.sh should bail out early if there is compilation error (Gustavo)



git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1592063 13f79535-47bb-0310-9956-ffa450edef68