Bug 1042591 - [Contacts][ICE] Display contacts from ICE group r=sergi

For DRY sake, maybe it would be better to make a function that does something like

```javascript
function refreshContactListWithID(id) { // This name is not great
  contactsList.refresh(event.contactID, function() {
    notifyContactChanged(event.contactID);
    checkPendingChanges();
  }, event.reason);
}
```
and use that