index.pl: Serve static files when in direct HTTP server mode

Makes it easier to setup a quick development server.

www/index.pl

@@ -44,6 +44,16 @@ TUWF::set(
 );
 
 
+TUWF::hook before => sub {
+    if(tuwf->{_TUWF}{http}) {
+        if(tuwf->resFile("$ROOT/www", tuwf->reqPath)) {
+            tuwf->resHeader('Cache-Control' => 'max-age=31536000');
+            tuwf->done;
+        }
+    }
+};
+
+
 TUWF::register(
   qr// => \&home,
   qr{info/about} => \&about,