A basic Unity indicator for msjnc.

    Starts with window hidden. Indicator Status command unhides it.
    WM close action on status window just hides it again, leaves
    indicator running. Indicator menu commands also allow Connect or
    Disconnect.  Icon changes on connect/disconnect.

    For some reason this only works when --fg is used.

    Requires Gtk2::AppIndicator from the "libgtk2-appindicator-perl"
    package.