Change http://www.roundup-tracker.org to https.

Author: rouilj

setup.py

@@ -126,7 +126,7 @@ def main():
             " with command-line, web and e-mail interfaces. Highly"
             " customisable.",
           long_description=long_description,
-          url='http://www.roundup-tracker.org',
+          url='https://www.roundup-tracker.org',
           download_url='https://pypi.org/project/roundup',
           classifiers=['Development Status :: 5 - Production/Stable',
                        #'Development Status :: 4 - Beta',