Log Message:
Revision 0.3.2:
- Fixed SequenceOf/SetOf types initialization syntax to remain
  backward compatible with pyasn1 0.2.*
- Rectified thread safety issues by moving lazy, run-time computation
  into object initializer.
- Fixed .isValue property to return True for empty SetOf/SequenceOf
  objects
- Fixed GeneralizedTime/UTCTime CER/DER codecs to actually get invoked
- Fixed DER/CER encoders handling optional SEQUENCE/SET fields containing
  nested SEQUENCE/SET with optional fields.
- Fixed crash in SequenceOf/SetOf pretty printing and decoding (in some
  cases)
- Fixed documentation markup issues.