old_contents: from comics.aggregator.crawler import CrawlerBase, CrawlerImage
  from comics.meta.base import MetaBase
  
  class Meta(MetaBase):
      name = 'Space Avalanche'
      language = 'en'
      url = 'http://www.spaceavalanche.com/'
      start_date = '2009-02-02'
      rights = 'Eoin Ryan'
  
  class Crawler(CrawlerBase):
      history_capable_days = 365
      time_zone = 0
  
      def crawl(self, pub_date):
          feed = self.parse_feed('http://feeds.feedburner.com/SpaceAvalanche1')
          for entry in feed.for_date(pub_date):
              url = entry.content0.src('img[src*="/wp-content/"]')
              title = entry.title
              return CrawlerImage(url, title)
  
new_contents: from comics.aggregator.crawler import CrawlerBase, CrawlerImage
  from comics.meta.base import MetaBase
  
  class Meta(MetaBase):
      name = 'Space Avalanche'
      language = 'en'
      url = 'http://www.spaceavalanche.com/'
      start_date = '2009-02-02'
      rights = 'Eoin Ryan'
  
  class Crawler(CrawlerBase):
      history_capable_days = 365
      time_zone = 0
  
      def crawl(self, pub_date):
          feed = self.parse_feed('http://feeds.feedburner.com/SpaceAvalanche1')
          for entry in feed.for_date(pub_date):
              urls = entry.content0.src('img[src*="/wp-content/"]',
                  allow_multiple=True)
              if urls:
                  url = urls[0]
                  title = entry.title
                  return CrawlerImage(url, title)
  
subject: Update 'spaceavalanche' after feed change