Fix a few validation issus with rss feed.

Author: cstack

_includes/image.html

@@ -1,4 +1,4 @@
 <table class="image">
 <caption align="bottom">{{ include.description }}</caption>
-<tr><td><img src="{{ site.baseurl }}/{{ include.url }}" alt="{{ include.description }}"/></td></tr>
+<tr><td><img src="{{site.url}}{{site.baseurl}}/{{ include.url }}" alt="{{ include.description }}"/></td></tr>
 </table>

feed.xml

@@ -4,10 +4,10 @@ layout: none
 <?xml version="1.0" encoding="UTF-8"?>
 <rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
   <channel>
-    <title>{{ site.name | xml_escape }}</title>
+    <title>{{ site.title | xml_escape }}</title>
     <description>{{ site.description | xml_escape }}</description>
-    <link>{{ site.url }}</link>
-    <atom:link href="{{ site.url }}/feed.xml" rel="self" type="application/rss+xml" />
+    <link>{{site.url}}{{site.baseurl}}</link>
+    <atom:link href="{{site.url}}{{site.baseurl}}/feed.xml" rel="self" type="application/rss+xml" />
     {% for part in site.parts limit:10 %}
       <item>
         <title>{{ part.title | xml_escape }}</title>