collapse excessive newlines into two

quest/events.py

@@ -31,6 +31,7 @@ def message(socket, data):
 	# cleaning
 	message = message[:512]
 	message = message.strip()
+	message = re.sub(r'\n\n+', '\n\n', message)
 	if not message:
 		return
 	tags = ["b", "code", "i", "s"]