plugin XEP-0198: Stream Management implementation: - hooks can now be set in stream onElement and send methods - xmllog refactored to use new hooks - client.isConnected now uses transport.connected method - fixed reconnection, SàT will now try to reconnect indefinitely until it success, unresolvable failure happen (e.g. invalid certificate), or explicit disconnection is requested (or a plugin change this behaviour) - new triggers: "stream_hooks", "disconnecting", "disconnected", and "xml_init" (replace "XML Initialized")