ACCUMULO-1360 added apache header

git-svn-id: https://svn.apache.org/repos/asf/accumulo/branches/1.5@1478882 13f79535-47bb-0310-9956-ffa450edef68
ACCUMULO-14 move MAC to server module

git-svn-id: https://svn.apache.org/repos/asf/accumulo/branches/1.5@1478896 13f79535-47bb-0310-9956-ffa450edef68
ACCUMULO-14 move MAC to server module
ACCUMULO-1360 added apache header

git-svn-id: https://svn.apache.org/repos/asf/accumulo/trunk@1478927 13f79535-47bb-0310-9956-ffa450edef68