HBASE-9547 Surefire steals focus on mac osx

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1523767 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9521  clean clearBufferOnFail behavior and deprecate it

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1523782 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9547 Surefire steals focus on mac osx; ADDENDUM

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1523802 13f79535-47bb-0310-9956-ffa450edef68