fix apostrophe in URLs (currently it is displayed as ')

js/twister_formatpost.js

@@ -208,7 +208,7 @@ function htmlFormatMsg( msg, output, mentions ) {
                 if( space != -1 ) url = tmp.substring(0,space); else url = tmp;
                 if( url.length ) {
                     msg = tmp.substr(String(url).length);
-                    url = url.replace(/&/g, '&');
+                    url = reverseHtmlEntities(url);
                     var extLinkTemplate = $("#external-page-link-template").clone(true);
                     extLinkTemplate.removeAttr("id");