[web] implemented twig templating system (#4264)

Signed-off-by: Kristian Feldsam <feldsam@gmail.com>

data/web/inc/functions.customize.inc.php

@@ -234,8 +234,9 @@ function customize($_action, $_item, $_data = null) {
             $img_data = explode('base64,', customize('get', 'main_logo'));
             if ($img_data[1]) {
               $image->readImageBlob(base64_decode($img_data[1]));
+              return $image->identifyImage();
             }
-            return $image->identifyImage();
+            return false;
           }
           catch (ImagickException $e) {
             $_SESSION['return'][] = array(
@@ -249,4 +250,4 @@ function customize($_action, $_item, $_data = null) {
       }
     break;
   }
-}
+}