Add two new TODOs (socket address and fork()).

pep-3156.txt

@@ -979,6 +979,14 @@ Open Issues
   given a file descriptor.  Or when the next scheduled call is.  Or
   the list of file descriptors registered with callbacks.
 
+- Transports may need a method that tries to return the address of the
+  socket (and another for the peer address).  Although these depend on
+  the socket type and there may not always be a socket; then it should
+  return None.
+
+- Need to handle os.fork().  (This may be up to the selector classes
+  in Tulip's case.)
+
 - We might introduce explicit locks, though these will be a bit of a
   pain to use, as we can't use the ``with lock: block`` syntax
   (because to wait for a lock we'd have to use ``yield from``, which