CSRF Protection (#235)

* Fix alert class name

* feature: csrf protection

* Cosmetics

* Fix token generate

* Admin Panel: changelogs csrf protection

* news/id route

* Refactor admin newses + add csrf

* Use admin.links instead

* Admin panel: Pages csrf

* Menus: better csrf + add success message on reset colors

* Plugins csrf

* Move definitions

* add info function, same as note($message)

* Update mailer.php

* Fix new page/news links

* clear_cache & maintenance csrf

* Formatting

* Fix news type

* Fix changelog link

* Add new changelog link

* More info to confirm dialog

* This is always true

admin/tools/settings_save.php

@@ -16,6 +16,8 @@ if(!admin()) {
 	die('Access denied.');
 }
 
+csrfProtect();
+
 if (!isset($_REQUEST['plugin'])) {
 	http_response_code(500);
 	die('Please enter plugin name.');