Plugin needs update to remove PHP 4 style constructors

Sample message:
PHP Notice: The called constructor method for WP_Widget is deprecated since version 4.3.0! Use __construct() instead.

See these articles for more info:

Deprecating PHP4 style constructors in WordPress 4.3

https://gist.github.com/chriscct7/d7d077afb01011b1839d

https://markjaquith.wordpress.com/2009/09/29/using-php5-object-constructors-in-wp-widget-api/

Yes, I know that this message goes away if you set WP_DEBUG to false. However, I have learned that it is valuable to enable WP_DEBUG in my test environment; I receive enough of these messages to make the dashboard unusable, so I am requesting corrections for each of the plugins or the theme that has this problem.

Thanks

https://ww.wp.xz.cn/plugins/google-calendar-widget/