Update site shows confusing status when outdated

### Step 1: Please describe your environment

* ZeroNet version: 4197
* Operating system: Windows

### Step 2: Describe the problem:

When i am having outdated revision of the Zeronet, the update site (http://127.0.0.1:43110/1uPDaT3uSyWAPdCv1WkMb5hBQjWSNNACf) is showing confusing text that i am up to date. It should say something like:
"Not up to date" or "Outdated Zeronet!"
[UPDATE TO LATEST VERSION]