Tricycle License

Most files in Tricycle are under the GNU General Public License version 2
(GPLv2); read the file COPYING.txt for details.

Some files are under the GNU General Public License version 2 or later
version (GPLv2+), the GNU Lesser General Public License Version 2.1 or later
version (LGPLv2.1+), or BSD/MIT/X11-style licenses. In combination, the GPLv2
license applies to Tricycle.