multilingual middleware used ADMIN_MEDIA_PREFIX setting, not present in django1.4

Author: bercab

cms/middleware/multilingual.py

@@ -41,7 +41,9 @@ def patch_response(content, pages_root, language):
     # If the regex matches, the extracted path we want is stored in the fourth group (\4).
     quoted_root = urllib.quote(pages_root)
     ignore_paths = ['%s%s/' % (quoted_root, lang[0]) for lang in settings.CMS_LANGUAGES]
-    ignore_paths += [settings.MEDIA_URL, settings.ADMIN_MEDIA_PREFIX]
+    ignore_paths += [settings.MEDIA_URL]
+    if getattr(settings, 'ADMIN_MEDIA_PREFIX', False):
+        ignore_paths += [settings.ADMIN_MEDIA_PREFIX]
     if getattr(settings,'STATIC_URL', False):
         ignore_paths += [settings.STATIC_URL]
 
@@ -56,7 +58,9 @@ def patch_response(content, pages_root, language):
     # For understanding this regex, please read the documentation for HREF_URL_FIX_RE above.
 
     ignore_paths = ['%s%s/' % (pages_root, lang[0]) for lang in settings.CMS_LANGUAGES]
-    ignore_paths += [settings.MEDIA_URL, settings.ADMIN_MEDIA_PREFIX]
+    ignore_paths += [settings.MEDIA_URL]
+    if getattr(settings, 'ADMIN_MEDIA_PREFIX', False):
+        ignore_paths += [settings.ADMIN_MEDIA_PREFIX]
     if getattr(settings,'STATIC_URL', False):
         ignore_paths += [settings.STATIC_URL]
     FORM_URL_FIX_RE = re.compile(ur'<form([^>]+)action=("|\')(?=%s)(?!(%s))(%s(.*?))("|\')(.*?)>' % (