Copyright 2011-2012 Oleksandr Rasputinov

   Licensed under the Apache License, Version 2.0 (the "Licence");
   you may not use this file except in compliance with the Licence.
   You may obtain a copy of the Licence at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the Licence is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the Licence for the specific language governing permissions and
   limitations under the Licence.