[trean] remove category

[Nate Mollring]

Quoting Chris Albertson <alb@chrisalbertson.com>:

> I've been doing it via SQL in the DB. It's been a bit, but I believe the
> links 
> and the category are stored in the same record in the categories DB. When you
> 
> delete the category, you kill all the links as well.
> Someone correct me if my memory has failed again.
> 
> SQL is the safest/only way I know of currently. But, the rate at which 
> development has been moving on this over the past 2 days, I wouldn't be 
> surprised if a category delete function is added very soon.
> 
> A big "THANKS" to all who have put effort into the recent changes. WTG!

I'll give that a try.  I agree, Trean is becoming pretty cool