Adapt classifiers for Pypi submission

setup.py

@@ -274,24 +274,20 @@ def setup_package():
           tests_require=['pytest'],
           cmdclass={'build_ext': m_build_ext,
                     'clean': m_clean, 'sdist': m_sdist},
-          classifiers=['Development Status :: 1',
+          classifiers=['Development Status :: 5 - Production/Stable',
                        'Intended Audience :: Science/Research',
                        'Intended Audience :: End Users/Desktop',
                        'Intended Audience :: Developers',
                        'Natural Language :: English',
-                       'License :: GNU GPL V3',
+                       'License :: OSI Approved :: GNU General Public License v3 (GPLv3)',
                        'Operating System :: MacOS :: MacOS X',
-                       'Operating System :: POSIX',
+                       'Operating System :: POSIX :: Linux',
                        'Programming Language :: C',
                        'Programming Language :: Python :: 2.7',
-                       'Programming Language :: Python :: 3',
-                       'Programming Language :: Python :: 3.2',
-                       'Programming Language :: Python :: 3.3',
                        'Programming Language :: Python :: 3.4',
                        'Topic :: Software Development',
-                       'Topic :: Scientific/Engineering',
-                       'Topic :: Software Development :: Libraries :: ' +
-                       'Python Modules',
+                       'Topic :: Scientific/Engineering :: Mathematics',
+                       'Topic :: Scientific/Engineering'
                        ],
           install_requires=['numpy>=1.8', 'matplotlib>=1.4', 'six>=1.10'],
           )