Added cache clear + toastr js lib for notifications

classes/controller.php

@@ -1,6 +1,7 @@
 <?php
 namespace Grav\Plugin;
 
+use Grav\Common\Cache;
 use Grav\Common\Config\Config;
 use Grav\Common\Filesystem\Folder;
 use Grav\Common\Grav;
@@ -137,6 +138,18 @@ class AdminController
         return true;
     }
 
+    protected function taskClearCache()
+    {
+        $results = Cache::clearCache('standard');
+        if (count($results) > 0) {
+            $this->admin->json_response = ['success', 'Cache cleared'];
+        } else {
+            $this->admin->json_response = ['error', 'Error clearing cache'];
+        }
+
+        return true;
+    }
+
     protected function taskListmedia()
     {
         $page = $this->admin->page(true);