1.5.2
  * add --run-dialog option to open run dialog

1.5.0
  * migration to gsettings
  * panel-menu-button: supports changed notify for new "has-arrow" key
  * clock applet: removed evolution support
  * default layout: default panel layout is loaded from
    $(datadir)/mate-panel/panel-default-layout.mate. You can ovverride it by
    providing $(datadir)/mate-panel/panel-default-layout.dist.