Merge pull request #5 from aprescott/atom-feed-xml-escape

Escape post.title in atom.xml

atom.xml

@@ -16,7 +16,7 @@ layout: null
 
  {% for post in site.posts %}
  <entry>
-   <title>{{ post.title }}</title>
+   <title>{{ post.title | xml_escape }}</title>
    <link href="http://blog.rubygems.org{{ post.url }}"/>
    <updated>{{ post.date | date_to_xmlschema }}</updated>
    <id>http://blog.rubygems.org{{ post.id }}</id>