Update requirements

nose-cov==1.6

really hope this works >__>

setup.py

@@ -31,9 +31,6 @@ setup(
                      open('HISTORY.rst').read(),
     include_package_data=True,
     packages=packages,
-    test_suite='nose.collector',
-    tests_require=['nose'],
-    extras_require={'test': ['nose']},
     classifiers=[
         'Development Status :: 4 - Beta',
         'Intended Audience :: Developers',