Move checker downloads to llvm.org.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@190316 91177308-0d34-0410-b5e6-96231b3b80d8

www/analyzer/latest_checker.html.incl

-<b><a href="https://attache.apple.com/AttacheWeb/dl?id=ATCa7ffcf434b2d42e2808c038760f52a77">checker-275.tar.bz2</a></b> (built May 23, 2013)
+<b><a href="downloads/checker-275.tar.bz2">checker-275.tar.bz2</a></b> (built May 23, 2013)

www/analyzer/release_notes.html

@@ -17,7 +17,7 @@
 
 <h4 id="checker_275">checker-275</h4>
 <p><b>built:</b> May 23, 2013</br>
-	<b>download:</b> <a href="https://attache.apple.com/AttacheWeb/dl?id=ATCa7ffcf434b2d42e2808c038760f52a77">checker-275.tar.bz2</a></p>
+	<b>download:</b> <a href="downloads/checker-275.tar.bz2">checker-275.tar.bz2</a></p>
 	<p><b>highlights:</b></p>
 	<ul>
     <li>Xcode: Includes a new arrow layout algorithm for issue presentation within Xcode.  The goal is for interprocedural bug reports to look cleaner and less busy (and easier to read).  Feedback appreciated.</li>