   Copyright 2015 Université catholique de Louvain (BE)
   Copyright 2015 Université de Liège (BE)
   Copyright 2015 Forschungszentrum Juelich (DE)
   Copyright 2015 INRA (FR)
   Copyright 2015 University of Vienna (AU)
   Copyright 2015 University of Nottingham (UK)
   Copyright 2015 CIRAD (FR)
   Copyright 2015 INRIA (FR)

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

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

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