option set fit to screen should be default ON

[rwst]

however see this code in JCPAApplet.java

    // the newly opened file should nicely fit the screen
    theJcpp.getRenderPanel().setFitToScreen(true);
    theJcpp.getRenderPanel().update(theJcpp.getRenderPanel().getGraphics());
    // ..enable zooming by removing constraint again
    theJcpp.getRenderPanel().setFitToScreen(false);