Use a new RFC base URL, since rfc.org seems down.

CHANGES

@@ -1,6 +1,11 @@
 Release 0.5.2 (in development)
 ==============================
 
+* Use a new RFC base URL, since rfc.org seems down.
+
+* Fix a crash in the todolist directive when no todo items are
+  defined.
+
 * Don't call LaTeX or dvipng over and over again if it was not
   found once, and use text-only latex as a substitute in that case.
 

sphinx/environment.py

@@ -49,7 +49,7 @@ default_settings = {
     'embed_stylesheet': False,
     'cloak_email_addresses': True,
     'pep_base_url': 'http://www.python.org/dev/peps/',
-    'rfc_base_url': 'http://rfc.net/',
+    'rfc_base_url': 'http://tools.ietf.org/html/',
     'input_encoding': 'utf-8',
     'doctitle_xform': False,
     'sectsubtitle_xform': False,