Fix GA on the website. The version as committed now does not function.

Note that different browsers implement different methods of DNT and
that some chosen values for the JS API has changed sine this was originally implemented.

Approved by:	doceng

en_US.ISO8859-1/htdocs/layout/js/google.js

@@ -18,7 +18,7 @@ var h = document.location.host;
  */
 var fbsdregex = /((docs|security|svnweb|wiki|www)\.freebsd\.org|google\.com)/i;
 
-if (window.navigator.doNotTrack == true) {
+if (navigator.doNotTrack == "yes" || navigator.doNotTrack == "1") {
 	allow_track = false;
 }