updating setup.py

Author: danielhomola

setup.py

@@ -4,11 +4,12 @@
       version='0.1.1',
       description='Python Implementation of Boruta Feature Selection',
       url='https://github.com/danielhomola/boruta_py',
+      download_url='https://github.com/danielhomola/boruta_py/tarball/0.1.1',
       author='Daniel Homola',
       author_email='dani.homola@gmail.com',
       license='BSD 3 clause',
       packages=['boruta'],
-      zip_safe=False,
+      keywords=['feature selection', 'machine learning', 'random forest'],
       install_requires=['numpy>=1.10.4',
                         'scikit-learn>=0.17.1',
                         'scipy>=0.17.0'