Now creates new addresses if existing one is not found, plus a few bonuses

 * fill in the field with progress info to give more user feedback
 * show domain being searched for
 * locate and use userid (required for email creation)
capture the input field at the beginning so user doesn't have to keep the field focused
a little bit of cleanup for memory improvement in success case (2MB or ~15% memory reduction)
version bump for a significantly useful product (still developer-only, though, for authorization issues)