fixed cases ensitive namespace

Author: bnomei

composer.json

@@ -1,7 +1,7 @@
 {
     "name": "bnomei/kirby3-feed",
     "type": "plugin",
-    "version": "1.0.4",
+    "version": "1.0.5",
     "description": "Generate a RSS/JSON-Feed from a Pages-Collection",
     "license": "MIT",
     "autoload": {

snippets/feed/rss.php

@@ -1,25 +1,25 @@
-<?php use \Kirby\Toolkit\XML;
+<?php use \Kirby\Toolkit\Xml;
 
 echo '<?xml version="1.0" encoding="utf-8"?>';
 ?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:atom="http://www.w3.org/2005/Atom">
 
   <channel>
-    <title><?= XML::encode($title) ?></title>
-    <link><?= XML::encode($link) ?></link>
-    <lastBuildDate><?= \date('r', $modified) ?></lastBuildDate>
-    <atom:link href="<?= XML::encode($url) ?>" rel="self" type="application/rss+xml" />
+    <title><?php echo Xml::encode($title) ?></title>
+    <link><?php echo Xml::encode($link) ?></link>
+    <lastBuildDate><?php echo \date('r', $modified) ?></lastBuildDate>
+    <atom:link href="<?php echo Xml::encode($url) ?>" rel="self" type="application/rss+xml" />
 
     <?php if (!empty($description)): ?>
-    <description><?= XML::encode($description) ?></description>
+    <description><?php echo Xml::encode($description) ?></description>
     <?php endif ?>
 
     <?php foreach ($items as $item): ?>
     <item>
-      <title><?= XML::encode($item->title()) ?></title>
-      <link><?= XML::encode($item->url()) ?></link>
-      <guid><?= XML::encode($item->id()) ?></guid>
-      <pubDate><?= $datefield == 'modified' ? $item->modified('r') : $item->date('r', $datefield) ?></pubDate>
-      <description><![CDATA[<?= $item->{$textfield}()->kirbytext() ?>]]></description>
+      <title><?php echo Xml::encode($item->title()) ?></title>
+      <link><?php echo Xml::encode($item->url()) ?></link>
+      <guid><?php echo Xml::encode($item->id()) ?></guid>
+      <pubDate><?php echo $datefield == 'modified' ? $item->modified('r') : $item->date('r', $datefield) ?></pubDate>
+      <description><![CDATA[<?php echo $item->{$textfield}()->kirbytext() ?>]]></description>
     </item>
     <?php endforeach ?>