Log Message:
py-asn1-modules: updated to 0.2.1

Revision 0.2.1, released 23-11-2017
- Allow ANY DEFINED BY objects expanding automatically if requested
- Imports PEP8'ed

Revision 0.1.5, released 10-10-2017
- OCSP response blob fixed in test
- Fixed wrong OCSP ResponderID components tagging

Revision 0.1.4, released 07-09-2017
- Typo fixed in the dependency spec

Revision 0.1.3, released 07-09-2017
- Apparently, pip>=1.5.6 is still widely used and it is not PEP440
  compliant. Had to replace the `~=` version dependency spec with a
  sequence of simple comparisons to remain compatible with the aging pip.

Revision 0.1.2, released 07-09-2017
- Pinned to pyasn1 ~0.3.4

Revision 0.1.1, released 27-08-2017
- Tests refactored into proper unit tests
- pem.readBase64fromText() convenience function added
- Pinned to pyasn1 0.3.3