Added flexibility for human-readable args in rss.php.

Added feeds.php, to list possible feeds -- reference page.

webtools/addons/public/htdocs/feeds.php

@@ -0,0 +1,17 @@
+<?php
+/**
+ * Home page for extensions, switchable on application.
+ *
+ * @package amo
+ * @subpackage docs
+ */
+
+startProcessing('feeds.tpl', null, $compileId,'nonav');
+require_once('includes.php');
+
+// Assign template variables.
+$tpl->assign(
+    array(  'title'             => 'Feeds',
+            'content'           => 'feeds.tpl')
+);
+?>

webtools/addons/public/htdocs/rss.php

@@ -25,9 +25,11 @@ switch (strtolower($rssapp)) {
 
 $rsstype = !empty($_GET['type']) && ctype_alpha($_GET['type']) ? $_GET['type'] : null;
 switch (strtolower($rsstype)) {
+    case 'themes':
     case 't':
         $clean['type'] = 't';
         break;
+    case 'extensions':
     case 'e':
     default:
         $clean['type'] = 'e';