[ANN] GeoCoding API updates

I've added a new geocoding API, metacarta-geoparser:

$ sudo gem install metacarta-geoparser

MetaCartaGeoParser contains two geocoding APIs, #locate:

   gp = MetaCartaGeoParser.new
   location = gp.locate 'baghdad'
   p location.coordinates
   p location.confidence

and #locations:

   gp = MetaCartaGeoParser.new
   locations, viewbox = gp.locations 'seattle'
   p locations.length
   p location.first.coordinates
   p viewbox # coordinates of a box showing all returned locations

Documentation here:

http://dev.robotcoop.com/Libraries/metacarta-geoparser/index.html

I've updated geocoder-us to use the RDF API so now you get a reliable address. I've also added a Location object making the API similar to the other three libraries.

Documentation here:

http://dev.robotcoop.com/Libraries/geocoder-us/index.html

I've switched all the APIs to use the new rc-rest library that makes it easy to implement and test REST-like web services APIs.

Documentation here:

http://dev.robotcoop.com/Libraries/rc-rest/index.html

I've added a mailing list:

http://lists.robotcoop.com/mailman/listinfo/Libraries

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Eric Hodel - drbrain@segment7.net - http://blog.segment7.net
This implementation is HODEL-HASH-9600 compliant

http://trackmap.robotcoop.com