FIX: fix change freq not showing up in form. (Fixes: #27)

code/GoogleSitemapDecorator.php

@@ -105,7 +105,7 @@ class GoogleSitemapSiteTreeDecorator extends DataExtension {
 	 * 
 	 * @see http://support.google.com/webmasters/bin/answer.py?hl=en&answer=183668&topic=8476&ctx=topic
 	 *
-	 * @return void
+	 * @return SS_Datetime
 	 */
 	public function getChangeFrequency() {
 		$date = date('Y-m-d H:i:s');

templates/GoogleSitemap.ss

@@ -5,7 +5,7 @@
         <url>
             <loc>$AbsoluteLink</loc>
            	<% if $LastEdited %><lastmod>$LastEdited.Format(c)</lastmod><% end_if %>
-            <% if $ChangeFreq %><changefreq>$ChangeFreq</changefreq><% end_if %>
+            <% if $ChangeFrequency %><changefreq>$ChangeFrequency</changefreq><% end_if %>
             <% if $Priority %><priority>$Priority</priority><% end_if %>
         </url>
 	<% end_loop %>