added python 3.5 to classifiers in setup.py

setup.py

@@ -37,6 +37,7 @@ setup(
         'Programming Language :: Python :: 3.2',
         'Programming Language :: Python :: 3.3',
         'Programming Language :: Python :: 3.4',
+        'Programming Language :: Python :: 3.5',
         'Topic :: Software Development :: Libraries :: Python Modules',
     ]
 )