fix the Futon issue where you have to cancel the admin dialog box aft…

…er putting back admins that were removed to run the tests

git-svn-id: https://svn.apache.org/repos/asf/couchdb/trunk@957808 13f79535-47bb-0310-9956-ffa450edef68

share/www/script/futon.js

@@ -87,7 +87,11 @@ function $$(node) {
                   return;
                 }
                 doSignup(data.name, null, function(errors) {
-                  callback(errors);
+                  if (errors && errors.name && errors.name.indexOf && errors.name.indexOf("taken") == -1) {
+                    callback(errors);
+                  } else {
+                    callback();
+                  }
                   }, false);
                 });            
             }