Update license in setup.py

Author: afoucret

setup.py

@@ -26,7 +26,7 @@
     classifiers=[
         'Development Status :: 4 - Beta',
         'Intended Audience :: Developers',
-        'License :: OSI Approved :: MIT License',
+        'License :: OSI Approved :: Apache Software License',
         'Programming Language :: Python :: 2',
         'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',