For the case where we have a native JSON object, do *not* for heavens sake

use the native JavaScript one.

This single-handedly improved the performance of the JSON DB on 3.16 by a
factor of about 20.

exec/load/synchronet-json.js

+if(js.global.JSON==undefined) {
 //alert('IMPORTANT: Remove this line from json2.js before deployment.');
 /*
     http://www.JSON.org/json2.js
@@ -482,3 +483,4 @@ replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {
     }
 }());
 
+}