1.0-13
    o modification of default colors for smoothScatter
1.0-12
    o return invisibly for plot.mpm
    o introduce tests directory and script
    o introduce NAMESPACE
    o display package version on loading package
1.0-11
    o added dump.summary.mpm function to package
    o fix sub title 
1.0-10
    o introduction of labels argument for plot.mpm in order to allow
      labels to be different from the row names
1.0-9
    o clarification plot.mpm documentation
    o removed (less flexible) `title' argument in favor of classical 
      main / sub titles	which can be passed to eqscplot via `...' 
      instead