I am so sorry. I bet I confused you with a previous comment. Because you rebased I can't see previous commits. 
Anyway, in the sidebar we always prefer the short_description. And I don't think we want ANY html allowed here. 

A concern I have with the bleach lib is that if you have something like this for `short_description`:
```
<a href="http://www.peterbe.com">Peter</a> comes and talks to us about HTML and stuff. 
```
What will bleach do with that? Will it become
```
 comes and talks to us about HTML and stuff. 
```
or
```
Peter comes and talks to us about HTML and stuff. 
```
Clearly we want the latter.