correct pep8 E501

setup.py

@@ -28,7 +28,8 @@ setup_dict = {'name': 'navipy',
               'author_email': 'olivier.bertrand@uni-bielefeld.de',
               'description': 'Insect Navigation Toolbox',
               'packages': create_package_list("navipy"),
-              'requires': ['numpy', 'pandas', 'matplotlib', 'scipy', 'networkx'],
+              'requires': ['numpy', 'pandas', 'matplotlib', 'scipy', 
+			   'networkx'],
               'install_requires': ["numpy", 'pandas', 'matplotlib', 'scipy',
                                    'sphinx_rtd_theme', 'networkx'],
               'package_data': {'navipy': ['resources/database.db',