/*! @page messenger Messengers

<BR>
<B> Previous:</B> @ref sVoc
<B> Up:</B> @ref Intro
<B> Next:</B>  @ref lemutree
<BR>
 
<HR>

 @section smessenger Messengers

 
<LI>The main file: LEmuSR.cc 
<UL>
<LI>@ref mandatories
<LI>@ref visualisation
<LI>@ref gui
<LI>@ref optact
<LI>@ref messenger
</UL>
  */