[Imports] Import of Belize roads

[Lars Kotthoff]

>   If you feel that the PD dataset is of sufficient quality, that should 
> be fine.

I had a quick look at it and it seems quite accurate. It also has information on
rank and surface of the roads.

> Cloudmade has a pre-built country extract for Belize that 
> looks to be small enough to conveniently load into JOSM:
> 
> http://downloads.cloudmade.com/north_america/belize#downloads_breadcrumbs

Ok thanks, I'll check it out.

Lars