Copyright (c) 2012-2017 Obeo and others.
All rights reserved. This program and the accompanying materials
are made available under the terms of the Eclipse Public License v1.0
which accompanies this distribution, and is available at
http://www.eclipse.org/legal/epl-v10.html

Contributors:
   Mikael Barbero (Obeo) - initial API and implementation
   Cedric Brun (Obeo) - PDE integration
   Denis Golovin - Fix version qualifier parsing problems
   Mikael Barbero (Eclipse Foundation) - Ongoing implementation