Remove python 3.3 and 3.4 from trove classifiers

Author: tony

setup.py

@@ -68,8 +68,6 @@ def run_tests(self):
         'Intended Audience :: Developers',
         'Programming Language :: Python',
         'Programming Language :: Python :: 2.7',
-        'Programming Language :: Python :: 3.3',
-        'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',