[Tilesathome] close-areas producing very long ways -> inkscape crashing

[Frederik Ramm]

Hi,

> For coastlines we certainly could get rid of anything that is outside
> the bounding box.

close-areas.pl does that already (keeps the nodes, but the way only 
covers everything up to the first node outside the bbox.)

> Actually we could do that for anything except closed
> areas.

Normal ways (i.e. not auto-generated) are usually not so long as to 
cause trouble to Osmarender, are they?

Bye
Frederik