Copyright holders:

2009          Peter Bastian
2009--2014    Markus Blatt
2013          Andreas Buhr
2014          Ansgar Burchardt
2009--2013    Christian Engwer
2009--2013    Jorrit Fahlke
2013--2014    Christoph Grüninger
2013          Dominic Kempf
2010--2014    Steffen Müthing
2012          Rebecca Neumann
2013          Bård Skaflestad

The TypeTree library, headers and test programs are copyrighted free software. You
can use, modify and/or redistribute it under the terms of either one of the two
following licenses:

* The GNU Lesser General Public License as published by the Free Software
  Foundation, either Version 3 of the license or (at your option) any later
  version. You can find a copy of the GNU Lesser General Public License, Version
  3, in the files GPL-3 and LGPL-3 or at <http://www.gnu.org/licenses/lgpl-3.0>.

* Version 2 of the GNU General Public License as published by the Free Software
  Foundation, with the following special exception for linking and compiling
  against the TypeTree library, the so-called "runtime exception":

    As a special exception, you may use the PDELab source files as part of a
    software library or application without restriction.  Specifically, if other
    files instantiate templates or use macros or inline functions from one or
    more of the PDELab source files, or you compile one or more of the PDELab
    source files and link them with other files to produce an executable, this
    does not by itself cause the resulting executable to be covered by the GNU
    General Public License.  This exception does not however invalidate any
    other reasons why the executable file might be covered by the GNU General
    Public License.

  This license is intended to be similar to the GNU Lesser General Public
  License, Version 2, which by itself isn't suitable for a template library. You
  can find a copy of the GNU General Public License, Version 2, in the file
  GPL-2 or at <http://www.gnu.org/licenses/gpl-2.0>.
