#17 license file is outdated

[gil]

Hi,
latest source archive (3.1.2, also in Your git and cvs repositories) contains a outdated license file.
Report this address
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
but should be [1]
51 Franklin Street, Fifth Floor, 02110-1301

Please, update COPYING file.

Thanks in advance

[1] https://www.gnu.org/licenses/gpl-2.0.txt