Add 2.01x announcement to news feed

LMS Lighthouse [#259]

lms/templates/feed.rss

@@ -6,7 +6,16 @@
   <link type="text/html" rel="alternate" href="http://blog.edx.org/"/>
   ##<link type="application/atom+xml" rel="self" href="https://github.com/blog.atom"/>
   <title>EdX Blog</title>
-  <updated>2013-02-20T14:00:12-07:00</updated>
+  <updated>2013-03-14T14:00:12-07:00</updated>
+  <entry>
+    <id>tag:www.edx.org,2013:Post/15</id>
+    <published>2013-03-14T10:00:00-07:00</published>
+    <updated>2013-03-14T10:00:00-07:00</updated>
+    <link type="text/html" rel="alternate" href="${reverse('courses/MITx/2.01x/2013_Spring/about')}"/>
+    <title>New mechanical engineering course open for enrollment</title>
+    <content type="html">&lt;img src=&quot;${static.url('images/press/releases/201x_240x180.jpg')}&quot; /&gt;
+        &lt;p&gt;&lt;/p&gt;</content>
+  </entry>
   <entry>
     <id>tag:www.edx.org,2013:Post/14</id>
     <published>2013-02-20T10:00:00-07:00</published>