[aur-dev] Remove category support

[Lukas Fleischer]

On Fri, 27 Feb 2015 at 14:56:40, Dustin Falgout wrote:
> [...]
> Well, I think the natural place to start is the freedesktop.org spec. I
> think it makes sense to use all the main categories[1] and then choose a
> few child categories from the Additional Categories[2] defined by the spec.
> 

I prefer replacing the hard-coded categories with user-definable tags.

> [1] http://standards.freedesktop.org/menu-spec/latest/apa.html
> [2] http://standards.freedesktop.org/menu-spec/latest/apas02.html
> 
> Cheers!
> Dustin
>