Alter trove classifiers in setup.py

- Changed license to list MPL-2.0
- Added advertisement of support for Python3.6

setup.py

@@ -57,11 +57,12 @@ def retrieve_deps(filepath):
  'Intended Audience :: Science/Research',
  'Intended Audience :: System Administrators',
  'Intended Audience :: Telecommunications Industry',
- 'License :: Other/Proprietary License',
+ 'License :: OSI Approved :: Mozilla Public License 2.0 (MPL 2.0)',
  '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',
  'Topic :: Communications',
  'Topic :: Education',
  'Topic :: Internet',