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MessageHub

MessageHub is a library that allows for communication between different hosts. A process running on one host can communicate with another process either on the same host or another host. MessageHub uses ZeroMQ to handle the lower level sockets. MessageHub provides a message queue which holds messages to be processed and another queue to handle out going messages. Currently outgoing messages are sent one at a time, so the outgoing queue is needed. MessageHub defines a message format, which basically is a JSON string with certain requirements.