update Piwik to version 2.16 (fixes #91)

www/analytics/core/DataTable/Renderer/Rss.php

@@ -1,6 +1,6 @@
 <?php
 /**
- * Piwik - Open source web analytics
+ * Piwik - free/libre analytics platform
  *
  * @link http://piwik.org
  * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
@@ -15,7 +15,6 @@ use Piwik\DataTable\Renderer;
 use Piwik\DataTable;
 use Piwik\Date;
 use Piwik\SettingsPiwik;
-use Piwik\Url;
 
 /**
  * RSS Feed.
@@ -30,24 +29,11 @@ class Rss extends Renderer
      *
      * @return string
      */
-    function render()
+    public function render()
     {
-        $this->renderHeader();
         return $this->renderTable($this->table);
     }
 
-    /**
-     * Computes the exception output and returns the string/binary
-     *
-     * @return string
-     */
-    function renderException()
-    {
-        header('Content-type: text/plain');
-        $exceptionMessage = $this->getExceptionMessage();
-        return 'Error: ' . $exceptionMessage;
-    }
-
     /**
      * Computes the output for the given data table
      *
@@ -101,14 +87,6 @@ class Rss extends Renderer
         return $header . $out . $footer;
     }
 
-    /**
-     * Sends the xml file http header
-     */
-    protected function renderHeader()
-    {
-        @header('Content-Type: text/xml; charset=utf-8');
-    }
-
     /**
      * Returns the RSS file footer
      *
@@ -185,7 +163,6 @@ class Rss extends Renderer
             }
         }
         $html .= "\n</tr>";
-        $colspan = count($allColumns);
 
         foreach ($tableStructure as $row) {
             $html .= "\n\n<tr>";