Fix to percent containing metrics in saved graphs

pctSavedGraphs.patch

diff --git a/webapp/content/js/composer.js b/webapp/content/js/composer.js
index 8e73a5c..734a381 100644
--- a/webapp/content/js/composer.js
+++ b/webapp/content/js/composer.js
@@ -205,7 +205,7 @@ ParameterizedURL.prototype = {
 
   setQueryString: function (qs) {
     /* Use the given query string (and update this.params to match) */
-    this.queryString = qs.replace(/#/,"%23");
+    this.queryString = qs.replace(/%/,"%25").replace(/#/,"%23");
     this.syncParams();
     this.syncQueryString();
   },