Log Message:
py-m2crypto: updated to 0.28.2

0.28.0:
- Mainly port to Python 3 (supporting 2.6, 2.7, 3.3, 3.4, 3.5, 3.6)
- Some lame efforts to make setup.py build --openssl work better (needs
  more real testing on Mac OS X)
- Fix licence: it is MIT, not BSD
- Fix and add tests for SWIG/_aes.i module
- Improve somehow situation on Mac OS X (some testing, improve setup.py,
  testsuite should fully pass)
- Bundle-in unittest2 for Python 2.6 (dealing with the need for
  specific version of unittest2 package was too complicated)
- Remove all PGP modules