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diff --git a/vendor/zendframework/zend-feed/src/Writer/Extension/Threading/Renderer/Entry.php b/vendor/zendframework/zend-feed/src/Writer/Extension/Threading/Renderer/Entry.php
new file mode 100644
index 000000000..bf7cde51a
--- /dev/null
+++ b/vendor/zendframework/zend-feed/src/Writer/Extension/Threading/Renderer/Entry.php
@@ -0,0 +1,138 @@
+<?php
+/**
+ * Zend Framework (http://framework.zend.com/)
+ *
+ * @link      http://github.com/zendframework/zf2 for the canonical source repository
+ * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license   http://framework.zend.com/license/new-bsd New BSD License
+ */
+
+namespace Zend\Feed\Writer\Extension\Threading\Renderer;
+
+use DOMDocument;
+use DOMElement;
+use Zend\Feed\Writer\Extension;
+
+/**
+*/
+class Entry extends Extension\AbstractRenderer
+{
+    /**
+     * Set to TRUE if a rendering method actually renders something. This
+     * is used to prevent premature appending of a XML namespace declaration
+     * until an element which requires it is actually appended.
+     *
+     * @var bool
+     */
+    protected $called = false;
+
+    /**
+     * Render entry
+     *
+     * @return void
+     */
+    public function render()
+    {
+        if (strtolower($this->getType()) == 'rss') {
+            return; // Atom 1.0 only
+        }
+        $this->_setCommentLink($this->dom, $this->base);
+        $this->_setCommentFeedLinks($this->dom, $this->base);
+        $this->_setCommentCount($this->dom, $this->base);
+        if ($this->called) {
+            $this->_appendNamespaces();
+        }
+    }
+
+    /**
+     * Append entry namespaces
+     *
+     * @return void
+     */
+    // @codingStandardsIgnoreStart
+    protected function _appendNamespaces()
+    {
+        // @codingStandardsIgnoreEnd
+        $this->getRootElement()->setAttribute(
+            'xmlns:thr',
+            'http://purl.org/syndication/thread/1.0'
+        );
+    }
+
+    /**
+     * Set comment link
+     *
+     * @param  DOMDocument $dom
+     * @param  DOMElement $root
+     * @return void
+     */
+    // @codingStandardsIgnoreStart
+    protected function _setCommentLink(DOMDocument $dom, DOMElement $root)
+    {
+        // @codingStandardsIgnoreEnd
+        $link = $this->getDataContainer()->getCommentLink();
+        if (! $link) {
+            return;
+        }
+        $clink = $this->dom->createElement('link');
+        $clink->setAttribute('rel', 'replies');
+        $clink->setAttribute('type', 'text/html');
+        $clink->setAttribute('href', $link);
+        $count = $this->getDataContainer()->getCommentCount();
+        if ($count !== null) {
+            $clink->setAttribute('thr:count', $count);
+        }
+        $root->appendChild($clink);
+        $this->called = true;
+    }
+
+    /**
+     * Set comment feed links
+     *
+     * @param  DOMDocument $dom
+     * @param  DOMElement $root
+     * @return void
+     */
+    // @codingStandardsIgnoreStart
+    protected function _setCommentFeedLinks(DOMDocument $dom, DOMElement $root)
+    {
+        // @codingStandardsIgnoreEnd
+        $links = $this->getDataContainer()->getCommentFeedLinks();
+        if (! $links || empty($links)) {
+            return;
+        }
+        foreach ($links as $link) {
+            $flink = $this->dom->createElement('link');
+            $flink->setAttribute('rel', 'replies');
+            $flink->setAttribute('type', 'application/' . $link['type'] . '+xml');
+            $flink->setAttribute('href', $link['uri']);
+            $count = $this->getDataContainer()->getCommentCount();
+            if ($count !== null) {
+                $flink->setAttribute('thr:count', $count);
+            }
+            $root->appendChild($flink);
+            $this->called = true;
+        }
+    }
+
+    /**
+     * Set entry comment count
+     *
+     * @param  DOMDocument $dom
+     * @param  DOMElement $root
+     * @return void
+     */
+    // @codingStandardsIgnoreStart
+    protected function _setCommentCount(DOMDocument $dom, DOMElement $root)
+    {
+        // @codingStandardsIgnoreEnd
+        $count = $this->getDataContainer()->getCommentCount();
+        if ($count === null) {
+            return;
+        }
+        $tcount = $this->dom->createElement('thr:total');
+        $tcount->nodeValue = $count;
+        $root->appendChild($tcount);
+        $this->called = true;
+    }
+}