Put nose back into setup.py for now.

Author: Issac Trotts

setup.py

@@ -18,6 +18,8 @@
     packages=find_packages(),
     zip_safe=False,
     install_requires=['pyPEG2'],
+    tests_require=['nose'],
+    test_suite='nose.collector',
     include_package_data=True,
     entry_points = {
         'console_scripts': [