Filterable dashboard widgets

[andrewlimaza]

• ENHANCEMENT: Added new filter 'pmpro_dashboard_meta_boxes' which allows developers to hide dashboard widgets, as well as add their very own widgets to the dashboard area.

All Submissions:

• Have you followed the Contributing guideline?
• Does your code follow the WordPress' coding standards?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

Changes proposed in this Pull Request:

This resolves an issue where WooCommerce (and most likely other plugins) cause a fatal error when trying to view our dashboard page.

How to test the changes in this Pull Request:

To test this, you can add the following code - this will remove the welcome dashboard from the PMPro dashboard:

// Example to remove a meta box from the dashboard
function my_pmpro_remove_meta_box_from_dashboard( $meta_boxes_array ) {
	unset( $meta_boxes_array['pmpro_dashboard_welcome'] );
	return $meta_boxes_array;
}
add_filter( 'pmpro_dashboard_meta_boxes', 'my_pmpro_remove_meta_box_from_dashboard' );

Other information:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you successfully run tests with your changes locally?