Copyright 2012 CRET

Licenced under LGPL licence, version 3
You may obtain a copy of the licence at

      http://www.gnu.org/licenses/lgpl.html
 
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