News downloads: When getting an article URL from a RSS feed, look first for an original article link. This speeds up the download of news services that use a syndication service like feedburner or pheedo to publish their RSS feeds.

src/calibre/web/feeds/news.py

@@ -357,9 +357,17 @@ class BasicNewsRecipe(Recipe):
         Override in a subclass to customize extraction of the :term:`URL` that points
         to the content for each article. Return the
         article URL. It is called with `article`, an object representing a parsed article
-        from a feed. See `feedsparser <http://www.feedparser.org/docs/>`_.
-        By default it returns `article.link <http://www.feedparser.org/docs/reference-entry-link.html>`_.
+        from a feed. See `feedparser <http://www.feedparser.org/docs/>`_.
+        By default it looks for the original link (for feeds syndicated via a
+        service like feedburner or pheedo) and if found,
+        returns that or else returns
+        `article.link <http://www.feedparser.org/docs/reference-entry-link.html>`_.
         '''
+        for key in article.keys():
+            if key.endswith('_origlink'):
+                url = article[key]
+                if url and url.startswith('http://'):
+                    return url
         return article.get('link',  None)
 
     def preprocess_html(self, soup):