save/restoreState does not take unchecked checkboxes into account

[lpiguet]

When saving state, I noticed that checkboxes that are not checked are not saved, and therefore, not restored.
The following changes against version 1.4.1 fix this (sorry, I am not able to generate a proper full diff):

@@ -49,8 +49,12 @@
         if ($e.is(":radio")) {
           $e.filter("[value=\"" + data[i].value + "\"]").prop("checked", true);
         }
-        else if ($e.is(":checkbox") && data[i].value) {
-          $e.prop("checked", true);
+        else if ($e.is(":checkbox")) {
+           if (data[i].value) {
+               $e.prop("checked", true);
+           } else {
+               $e.prop("checked", false);
+           }
         }
         else if ($e.is("select")) {
           $e.find("[value=\"" + data[i].value + "\"]").prop("selected", true);

and

@@ -95,6 +98,14 @@
         var $i = $(this);
         values.push({ name: $i.attr("name"), value: $i.val() });
       });
+      // Checkbox that are not selected are ignored, so we need to add them
+      instance.$el.find("input[type='checkbox']").each(function() {
+        var $i = $(this);
+       if ($i.is(":checked") == false) {
+           values.push({ name: $i.attr("name"), value: $i.is(":checked") });
+       }
+      });
+
       values = instance.removeIgnored(values);
       values.length && internals.setObject(instance.objName, values);
     },