Fixed <loot-dialog>.

The issues seem to have been due to the layered attribute being true by
default in Polymer 0.5.0. The layering complicates matters (it moves
dialogs into shadow DOM), and I don't think I need it, so it's been
disabled. I also removed the open property, as it conflicts with an
existing function name.

resources/report/html/loot-dialog.html

@@ -11,30 +11,23 @@ Still missing compared to <dialog> are:
 <link rel="import" href="../bower_components/polymer/polymer.html">
 <link rel="import" href="../bower_components/paper-dialog/paper-action-dialog.html">
 
-<polymer-element name="loot-dialog" extends="paper-action-dialog" attributes="open" transition="core-transition-center" autoCloseDisabled backdrop>
+<polymer-element name="loot-dialog" extends="paper-action-dialog" transition="core-transition-center" layered="false">
     <script>
     Polymer({
-        open: false,
-
-        openedChanged: function(oldValue, newValue) {
-            this.open = newValue;
-        },
-
-        openChanged: function(oldValue, newValue) {
-            this.opened = newValue;
-        },
-
         show: function() {
             this.backdrop = false;
+            this.autoCloseDisabled = false;
             this.setAttribute(opened, true);
         },
         showModal: function() {
             this.backdrop = true;
+            this.autoCloseDisabled = true;
+            this.open();
             this.setAttribute('opened', true);
         },
         close: function(retVal) {
             this.setAttribute('returnValue', retVal);
-            this.removeAttribute(opened);
+            this.super();
         },
     });
     </script>

resources/report/js/script.js

@@ -686,14 +686,14 @@ function showProgress(message) {
     if (message) {
         progressDialog.getElementsByTagName('h1')[0].textContent = message;
     }
-    if (!progressDialog.open) {
+    if (!progressDialog.opened) {
         progressDialog.showModal();
         progressDialog.querySelector('.progress').classList.toggle('running');
     }
 }
 function closeProgressDialog() {
     var progressDialog = document.getElementById('progressDialog');
-    if (progressDialog.open) {
+    if (progressDialog.opened) {
         progressDialog.close();
         progressDialog.querySelector('.progress').classList.toggle('running');
     }