This also freezes the Peer scores, and adds code to handle loading
frozen scores.

There was an extra line break that caused the output to look like:

```
* item 1

* item 2

* item 3
```

Which turned into 3 <ul> items, instead of one with three <li>s

Tab characters were leading to some malformed links in all proposal
pages, and the test document was not yet updated for the new interface.