public static void log(String message) {
        Log.i(TAG, message);
        Message msg = UI_HANDLER.obtainMessage(0, message);
        msg.sendToTarget();
    }
Logs a String message to the screen. This String will be overlayed on top of the
UI elements currently displayed on screen. As a side effect, this message will
also be logged to the standard output via {@link android.util.Log}.

@param message String to be displayed
src/main/java/com/inaka/galgo/Galgo.java