Changes for version 1.0
- fixed memory corruption caused by not properly allocating the cdb structure.
 - write database in hilbert-curve order to improve locality of accesses (also typically improves compression).
 - improved some geo-latlon2place-makedb error messages.
 - convert to C++.
 
Documentation
generate database for use with Geo::LatLon2Place    
  Modules
convert latitude and longitude to nearest place