Fix setup classifiers and license

setup.py

@@ -1,5 +1,6 @@
 #!/usr/bin/env python
-#This file is part of Tryton.  The COPYRIGHT file at the top level of this repository contains the full copyright notices and license terms.
+#This file is part of Tryton.  The COPYRIGHT file at the top level of
+#this repository contains the full copyright notices and license terms.
 
 from distutils.core import setup
 from distutils.command import sdist
@@ -43,13 +44,14 @@ setup(name='trytond-' + info['name'].lower(),
         'Intended Audience :: Financial and Insurance Industry',
         'Intended Audience :: Legal Industry',
         'Intended Audience :: Manufacturing',
+        'License :: OSI Approved :: GNU General Public License (GPL)',
         'Natural Language :: English',
         'Natural Language :: French',
         'Operating System :: OS Independent',
         'Programming Language :: Python',
         'Topic :: Office/Business',
     ],
-    license=info.get('license', 'GPL-2'),
+    license='GPL-3',
     #requires=requires,
     cmdclass={
         'sdist': mysdist,