This is a small command-line application that allows user (or other processes)
to send messages to the backend's message bus. This was written mainly for debug
purposes, but it can be used for other things too. The usage of this application
is straight forward. Command line tool takes only one paramter, which is the
type of the message that will be emitted to the message bus. Here is an example
how to force feed cache to be updated immediately:
\begin{center}
	\begin{verbatim}
        entertainer-messagebus-notifier.py --message=UPDATE_FEEDS
	\end{verbatim}
\end{center}