Change reference to NPL to MPL.

js/rhino/docs/download.html

@@ -152,8 +152,8 @@ href="http://xmlbeans.apache.org/">XMLBeans</a> library and if you would like to
 Scripting  Framework (BSF), please read the following <a href="bsf.html#bsf-issue">note</a> and then download one of the zip files above and unzip it. </p>
 
 <h3> Source</h3>
-The source code for Rhino is available under <a
-href="http://www.mozilla.org/NPL/"> NPL 1.1</a> . In addition to getting the
+The source code for Rhino is available under a dual <a
+href="http://www.mozilla.org/MPL/MPL-1.1.html">MPL 1.1</a>/GPL 2.0 license. In addition to getting the
 source from the zip files above, the source code for Rhino can be found in the
 CVS tree at mozilla/js/rhino. See <a
 href="http://www.mozilla.org/cvs.html">source code via cvs</a> for details on