lgpl-2.1 License

Copyright (c) 2015-2019 the Usurpation authors (see the file AUTHORS
for a complete list)

The Usurpation is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; version 2.1
of the License.

This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.

A copy of the GNU Lesser General Public License is included in the
Rin Library distribution in the file COPYING. If you did not receive
this copy, write to the Free Software Foundation, Inc., 51 Franklin St,
Fifth Floor, Boston, MA 02110-1301, USA.