fixed update dates in INDEX file

Author: JohnCremona

INDEX.html

@@ -24,7 +24,7 @@ <h2>
 University of Warwick, U.K.</h2>
 <p>
 <i>
-Updated <a href="release_notes.txt">2014-08-29 (last major update 2014-05-12)</a>
+Updated <a href="release_notes.txt">2015-02-11 (last major update 2015-02-11)</a>
 </i>
 </p></center>
 
@@ -1113,8 +1113,8 @@ <h3>
 
 
 <hr>
-<p><b>Recent update notes</b>:&nbsp; <a href="release_notes.txt">29
-    August 2014</a>
+<p><b>Recent update notes</b>:&nbsp; <a href="release_notes.txt">11
+    February 2015</a>
 </p><hr>
 
 <tt>john dot cremona at gmail dot com</tt>