OK, after adding ThreadedNetworkedTests to the 'tests' list in
test_main, the new tests ran and did hang.  After applying the imaplib
patch, the new tests completed.  However, afterward I got the following
traceback:

Exception in thread Thread-6 (most likely raised during interpreter
shutdown):
Traceback (most recent call last):
  File "/home/rdmurray/python/trunk/Lib/threading.py", line 526, in
__bootstrap_inner
  File "/home/rdmurray/python/trunk/Lib/threading.py", line 479, in run
  File "/home/rdmurray/python/trunk/Lib/SocketServer.py", line 583, in
process_request_thread
  File "/home/rdmurray/python/trunk/Lib/test/test_imaplib.py", line 82,
in handle_error
  File "/home/rdmurray/python/trunk/Lib/SocketServer.py", line 434, in
server_close
  File "/home/rdmurray/python/trunk/Lib/socket.py", line 192, in close
<type 'exceptions.TypeError'>: 'NoneType' object is not callable