Tweak license page to explicitly say that zero clause BSD is functionally equivalent to placing the code in the public domain.

This license variant looks like BSD, but is an unrestricted permission grant that doesn't require you to copy specific license text into derivative works. (The second paragraph is about something we DON'T do, I.E. provide any sort of warantee, and is just boilerplate from BSD to make it look like a BSD license.)
diff --git a/www/license.html b/www/license.html
index 1eb449c..5fcb94f 100755
--- a/www/license.html
+++ b/www/license.html
@@ -1,7 +1,7 @@
 <html><head><title>Toybox License</title>
 <!--#include file="header.html" -->
 
-<h2>Toybox is licensed under a simple 2-clause MIT/BSD style license:</h2>
+<h2>Toybox is released under the following "zero clause" BSD license:</h2>,
 
 <blockquote>
 <p>Copyright (C) 2006 by Rob Landley &lt;rob@landley.net&gt;
@@ -18,6 +18,7 @@
 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.</p>
 </blockquote>
 
-<P>The text of this license is included in the file LICENSE in the source.</p>
+<p>You can treat it as a license if you like, but this variant is functionally
+equivalent to placing the code in the public domain.</p>
 
 <!--#include file="footer.html" -->