Updated date to May 15, 2014

Also changed link for course staff guide to use the URL we want.

index.html

@@ -155,7 +155,7 @@
 
              <ul class="list--links">
                 <li class="item-link">
-                  <a class="item-link__action" href="http://edx.readthedocs.org/projects/ca/en/latest/">
+                  <a class="item-link__action" href="http://edx.readthedocs.org/projects/edx-partner-course-staff/en/latest/">
                     <h4 class="item-link__title">Building and Running an edX Course</h4>
                     <div class="item-link__copy">
                       <p>
@@ -172,7 +172,7 @@
 
         <aside class="content__supplementary">
         <div class="info info--how">
-            <h2 class="title info__title">What’s New as of May 12, 2014</h2>
+            <h2 class="title info__title">What’s New as of May 15, 2014</h2>
 
             <div class="info__copy">
               <p>Read a <a rel="external" href="http://edx-release-notes.readthedocs.org/en/latest/">cumulative list of released changes</a> in edX Studio and the Learning Management System.</p>