Pickling / unpickling #23
Description
Check that DomainModel can be pickled / unpickled without problems, add unit tests for that.
- Python 2.6 / 2.7 checks:
- pickle (Protocols: 0, 1, 2)
- cPickle (Protocols: 0, 1, 2)
- Python 3.3 checks:
- pickle (Protocols: 0, 1, 2, 3)
- Python 3.4 / 3.5 checks:
- pickle (Protocols: 0, 1, 2, 3, 4)