Fix ecrans.fr backend

Since ecrans.fr is not a website itself, but part of liberations.fr,
we can except some bugs in the next few weeks.

modules/ecrans/backend.py

@@ -33,7 +33,7 @@ class NewspaperEcransBackend(GenericNewspaperBackend, ICapMessages):
     NAME = 'ecrans'
     DESCRIPTION = u'Écrans French news website'
     BROWSER = NewspaperEcransBrowser
-    RSS_FEED = 'http://www.ecrans.fr/spip.php?page=backend'
+    RSS_FEED = 'http://www.ecrans.fr/rss/53/spip.php?page=backend'
     RSSID = staticmethod(rssid)
     URL2ID = staticmethod(url2id)
     # RSS Size is actually 10, but some articles are not sorted by publication date

modules/ecrans/browser.py

@@ -39,5 +39,6 @@ class NewspaperEcransBrowser(BaseBrowser):
 
     def get_content(self, _id):
         "return page article content"
-        self.location(_id)
-        return self.page.get_article(_id)
+        url = _id.replace('/rss/53', '')
+        self.location(url)
+        return self.page.get_article(url)