Copyright (c) 2013-2018 by Ron Frederick <ronf@timeheart.net> and others.

This program and the accompanying materials are made available under
the terms of the Eclipse Public License v2.0 which accompanies this
distribution and is available at:

    http://www.eclipse.org/legal/epl-2.0/

This program may also be made available under the following secondary
licenses when the conditions for such availability set forth in the
Eclipse Public License v2.0 are satisfied:

   GNU General Public License, Version 2.0, or any later versions of
   that license

SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later