Sean changes to send emails - lines 328-349:

        // User is signing in for the first time, and has a valid email address 
        elseif (is_email($email)) {

            // Create user
            $user_id = wp_create_user($email, wp_generate_password(16), $email);
			
			//SE 20190103
			//Send email to WP admin confirming new user creation
			$msgstr = "A new user has been created: ".$email;
			mail(get_option('admin_email'),get_option('blogname').": New User Created Via LinkedIn",$msgstr);

            // Set the user redirect URL
            $this->user_redirect = $this->li_options['li_registration_redirect_url'];

            // Update the user's data, since this is his first sign-in
            $this->update_user_data($xml, $user_id);
            
            // The action tells us that the user has registered via LinkedIn
            do_action('pkli_registration', $user_id);

            return $user_id;
        }
