Updated Python versions in setup

Author: syrusakbary

setup.py

@@ -41,6 +41,12 @@ def run_tests(self):
         'Intended Audience :: Developers',
         'Topic :: Software Development :: Libraries',
         'Programming Language :: Python :: 2',
+        'Programming Language :: Python :: 2.7',
+        'Programming Language :: Python :: 3',
+        'Programming Language :: Python :: 3.3',
+        'Programming Language :: Python :: 3.4',
+        'Programming Language :: Python :: 3.5',
+        'Programming Language :: Python :: Implementation :: PyPy',
     ],
 
     keywords='api graphql protocol rest relay',