adding package data

Author: Matt George

setup.py

@@ -13,6 +13,7 @@
     packages=find_packages(exclude=['ez_setup', 'examples', 'tests']),
     download_url='http://pypi.python.org/packages/source/p/pyres/pyres-%s.tar.gz' % version,
     include_package_data=True,
+    package_data={'': ['requirements.txt']},
     entry_points = """\
     [console_scripts]
     pyres_manager=pyres.scripts:pyres_manager