[Tagging] Bridges and layers

[Richard Mann]

Pre-processing isn't really an option for Kosmos, Maperitive,
MapCSS/Halcyon (and judging by the number of rendering tags it spawns)
Osmarender.

Rendering is not something that only the gods do, there are tools
arriving that will make it a lot lot easier to render. When these
people render, they will fix the data so that it renders well. Either
they will fix it in their own way or they'll fix it in a standard way.

This idea that taggers do all the work, and renderers are gods is
soooo noughties.

Richard