dispy version 2.3 has been released. This version supports synchronous SSL
(although most of dispy uses asynchronous sockets, there are couple of places
where synchronous sockets are used). dispy uses messages that are tagged with
length of the message so receiving socket knows how much data to read. This
simplifies communication. The methods that implement these have been renamed
from read/write/read_msg/write_msg to recvall/sendall/recv_msg/send_msg to
avoid confusion with standard read/write methods.