AnsPress_Email::add_email( array|string $email )

		anspress()->add_action( 'deleted_comment', __CLASS__, 'delete_comment_subscriptions' );

		anspress()->add_action( 'ap_option_groups', __CLASS__, 'register_option', 100 );
		anspress()->add_action( 'ap_after_new_question', __CLASS__, 'ap_after_new_question' );
		anspress()->add_action( 'ap_after_new_answer', __CLASS__, 'ap_after_new_answer' );
		anspress()->add_action( 'ap_select_answer', __CLASS__, 'select_answer' );
		anspress()->add_action( 'ap_publish_comment', __CLASS__, 'new_comment' );
		anspress()->add_action( 'ap_after_update_question', __CLASS__, 'ap_after_update_question', 10, 2 );
		anspress()->add_action( 'ap_after_update_answer', __CLASS__, 'ap_after_update_answer', 10, 2 );
		anspress()->add_action( 'ap_trash_question', __CLASS__, 'ap_trash_question', 10, 2 );
		anspress()->add_action( 'ap_trash_answer', __CLASS__, 'ap_trash_answer', 10, 2 );