Theme work, and a sandbox function for a consistent point to check whether we're sandboxed or not.

git-svn-id: file:///svn-source/pmgr/branches/pre_0.1_work_20090819@807 97e9348a-65ac-dc4b-aefc-98561f571b83

site/config/bootstrap.php

@@ -32,6 +32,10 @@
  *
  */
 
+function sandbox() {
+  return preg_match("%^/[^/]*sand/%", $_SERVER['REQUEST_URI']);
+}
+
 function server_request_var($var) {
   return (preg_match("/^HTTP/", $var));
 }