Tests not running cleanly on master.

[corranwebster]

PR #41 seems to have broken about 20 tests. Either the tests need to be fixed, or the code.

[dpinte]

@corranwebster thanks for the report. I've just found out this is using nosetests and not the unittest discover tools. I'm fixing the issues. PR will come today or tomorrow morning max. We should really have travis-ci on this project

[mdickinson]

For extra fun, run the tests with PYTHONHASHSEED=random. That's giving me a few extra failures, now and then.

[mdickinson]

Opened a separate issue (#49) for the PYTHONHASHSEED=random failures.

[mdickinson]

@corranwebster: Okay to close this issue?