[OSM-dev] planet.rb -- stab at a planet.osm dumping script

[nick at hogweed.org]

I have put together planet.rb -- a stab at a script to dump OSM given a 
bounding box. It works by calling the methods in dao.rb and dumping XML out 
direct, rather than creating a DOM.

To give an idea of the time it took - on the dev server, which has a database 
derived from the April planet.osm containing the UK, France and parts of 
Germany, fetching the bounding box 1W,51N,0,52N took 27 seconds. 

Would be a good idea to schedule a time for dumping planet.osm and temporarily 
shut down the OSM API during that time period? That way, the chance of memory 
issues would be reduced.

Nick