Remove untested versions from setup.py

Author: itziakos

setup.py

@@ -144,10 +144,8 @@ def write_version_py(filename='haas/_version.py'):
             'Operating System :: Unix',
             'Programming Language :: Python',
             'Programming Language :: Python :: 2',
-            'Programming Language :: Python :: 2.6',
             '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 :: 3.6',