====== UO Protocol 0x71 ======

=====  Bulletin Board =====

    Submessage 0 - Display Bulletin Board
    Submessage 1 - Message Summary
    Submessage 2 - Message
    Submessage 3 - Request Message
    Submessage 4 - Request Message Summary
    Submessage 5 - Post a message
    Submessage 6 - Remove Posted Message