ACCUMULO-971 Fix LICENSE headers, which should not be javadocs, and should be before the package declaration for the file. Moved some class comments that were
between the package line and the import statements.


git-svn-id: https://svn.apache.org/repos/asf/accumulo/branches/1.5@1447979 13f79535-47bb-0310-9956-ffa450edef68