When disconnecting, the client should forward a DISCONNECT message

[afhall]

As per instructions, http://stomp.github.io/stomp-specification-1.1.html#DISCONNECT

"To do a graceful shutdown, where the client is assured that all previous frames have been received by the server, the client should send a DISCONNECT frame with a receipt header set"

Without this, using ActiveMQ, you will receive the following message on the server:

[ActiveMQ Transport: tcp:///127.0.0.1:63893] INFO o.a.a.b.T.Transport - Transport failed: java.io.EOFException