[Tile-serving] [osm2pgsql] Add support for site relations (#221)

[dieterdreist]

It would be nice to have some kind of support for site relations so that they can be rendered. The current definition is very generic (allowing for relations consisting only in points or ways for example):
http://wiki.openstreetmap.org/wiki/Relations/Proposed/Site

Maybe the perimeter-object could be used to create a polygon (if present) and if no area is defined in the relation a convex hull could be calculated (or a node) and the relation tags added to it. This would not allow for nice polygon/outline rendering in most cases, but to label the area it would be sufficient.

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Reply to this email directly or view it on GitHub:
https://github.com/openstreetmap/osm2pgsql/issues/221
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