Change import ordering to remove warning.

I was getting:

Exception KeyError: KeyError(4359890736,) in <module 'threading' from '/usr/local/Cellar/python/2.7.3/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.pyc'> ignored

I changed the order as suggested here: http://stackoverflow.com/questions/8774958/keyerror-in-module-threading-after-a-successful-py-test-run

Fixed.