Courier.java line 112 subscribes to malformed topic

[Garepjotr]

public void subm(String topicname){
try {
this.subscribe(this.topic+ "/input/"+topicname);

Do this instead:
this.subscribe(topicname);

[ajtag]

Not sure I agree with this one.
The reason for having this.topic+'input' is to seperate Input from Ouput notifications and so multiple servers can exist within the same MQTT server.

topicname is effectively the third line from a sign, so this leaves the user to stop name colisions

[Garepjotr]

but you do
subm(topic+"/input/#");
wich would subscibe you to:
minecraft/input/minecraft/input/#