nosetests explodes on setup function

[thezerobit]

I think nose runs the setup function in sphinxext.py erroneously (mistaking it as a test setup function), causing it to explode before any actual tests are run:

$ nosetests cartouche.test
E
======================================================================
ERROR: test suite for <module 'cartouche.test' from '/home/sgoss/projects/cartouche/cartouche/test/__init__.pyc'>
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Traceback (most recent call last):
  File "/home/sgoss/projects/cartouche_env/local/lib/python2.7/site-packages/nose/suite.py", line 208, in run
    self.setUp()
  File "/home/sgoss/projects/cartouche_env/local/lib/python2.7/site-packages/nose/suite.py", line 291, in setUp
    self.setupContext(ancestor)
  File "/home/sgoss/projects/cartouche_env/local/lib/python2.7/site-packages/nose/suite.py", line 314, in setupContext
    try_run(context, names)
  File "/home/sgoss/projects/cartouche_env/local/lib/python2.7/site-packages/nose/util.py", line 476, in try_run
    return func(obj)
  File "/home/sgoss/projects/cartouche/cartouche/sphinxext.py", line 6, in setup
    app.add_config_value('cartouche_accept_bulleted_args', False, 'env')
AttributeError: 'module' object has no attribute 'add_config_value'

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Ran 0 tests in 0.000s

FAILED (errors=1)