Log Message:
py-autobahn: updated to 19.5.1

19.5.1
fix: authextra merging
fix: set default retry_delay_jitter
new: add rawsocket + twisted example
new: WebSocket testing support, via Agent-style interface
new: decorator for on_connectfailure
fix: delayed call leakage
new: CLI client
fix: set up TLS over proxy properly
new: expose ser modules
fix: base64 encodings, add hex encoding
new: onConnecting callback (with TransportDetails and ConnectingRequest). Note: \ 
if you've implemented a pure IWebSocketChannel without inheriting from Autobahn \ 
base classes, you'll need to add an onConnecting() method that just does return \ 
None.