Update checker build.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157339 91177308-0d34-0410-b5e6-96231b3b80d8

www/analyzer/latest_checker.html.incl

-<b><a href="http://bit.ly/JceZBE">checker-265.tar.bz2</a></b> (built May 8, 2012)
+<b><a href="http://bit.ly/LgtUWx">checker-266.tar.bz2</a></b> (built May 23, 2012)

www/analyzer/release_notes.html

@@ -15,8 +15,14 @@
 
 <h1>Release notes for <tt>checker-XXX</tt> builds</h1>
 
-<h4 id="checker_265">checker-265</h4>
+<h4 id="checker_266">checker-266</h4>
+<p><b>built:</b> May 23, 2012</br>
+   <b>download:</b> <a href="http://bit.ly/LgtUWx">checker-266.tar.bz2</a></p>
+   <p><b>highlights:</b></p>
 
+<p>Contains numerous stability fixes over checker-266, especially when analyzing C++11 code.</p>
+
+<h4 id="checker_265">checker-265</h4>
 <p><b>built:</b> May 8, 2012</br>
    <b>download:</b> <a href="http://bit.ly/JceZBE">checker-265.tar.bz2</a></p>
    <p><b>highlights:</b></p>