old_contents: from been.core import SiteFeedSource, source_registry
  
  class GitHub(SiteFeedSource):
      url_format = 'http://github.com/{username}.atom'
      kind = 'github'
      def process_event(self, event):
          summary = event['summary']
          if summary.startswith(self.config['username']):
              event['summary'] = summary[summary.find(' ') + 1:]
          return event
  source_registry.add(GitHub)
  
new_contents: from been.core import SiteFeedSource, source_registry
  
  class GitHub(SiteFeedSource):
      url_format = 'https://github.com/{username}.atom'
      kind = 'github'
      def process_event(self, event):
          summary = event['summary']
          if summary.startswith(self.config['username']):
              event['summary'] = summary[summary.find(' ') + 1:]
          return event
  source_registry.add(GitHub)
  
subject: Use https for github feeds.