Revert "Use working link, still file content updated thus md5sum needs correction too."

This reverts commit 8f10fa61.

setup.py

@@ -17,7 +17,7 @@ Topic :: Software Development :: Libraries :: Python Modules
 if not os.path.exists('mock.py'):
     import cStringIO, hashlib, urllib, zipfile
     mock_py = zipfile.ZipFile(cStringIO.StringIO(urllib.urlopen(
-        'http://ufpr.dl.sourceforge.net/project/python-mock/python-mock/version%200.1.0/pythonmock-0.1.0.zip'
+        'http://downloads.sf.net/sourceforge/python-mock/pythonmock-0.1.0.zip'
         ).read())).read('mock.py')
     if hashlib.md5(mock_py).hexdigest() != '79f42f390678e5195d9ce4ae43bd18ec':
         raise EnvironmentError("MD5 checksum mismatch downloading 'mock.py'")