@Override
    public void start(boolean waitFor) {
        start(JmeContext.Type.Display, waitFor);
    }
Starts the application in {@link Type#Display display} mode.

@param waitFor true&rarr;wait for the context to be initialized,
false&rarr;don't wait
@see #start(com.jme3.system.JmeContext.Type)
jme3-core/src/main/java/com/jme3/app/LegacyApplication.java