Empty metadata list before cloning it, Refs #375

ui/static/main.css

@@ -1149,6 +1149,11 @@ input.machine {
     height: 248px;
     width: 345px;
     margin-left: 15px;
+    overflow: auto;
+}
+
+.meta-modal div.content li {
+    margin-bottom: 20px;
 }
 
 .meta-modal p {

ui/static/synnefo.js

@@ -696,7 +696,7 @@ function get_metadata(serverID) {
 			}
         },
         success: function(data, textStatus, jqXHR) {
-            update_metadata(data);
+            list_metadata(data);
         }
     });
     return false;

ui/templates/machines.html

@@ -656,10 +656,12 @@ $('#editor-2.meta-modal button.save').click( function(){
 });
 
 // update metadata in edit dialog
-function update_metadata(data) {
-
+function list_metadata(data) {    
+    // empty the list if it already exists
+    $("#editor-1 div.content ul.meta-list").empty();
+    // get the values to show
     meta = data.metadata.values;
-
+    // show values
     for (key in meta) {
         pair = $("ul.meta-template li").clone();
         pair.find("label").text(key);