Fix: stop double-adjusting radius when km used.

Thanks github.com/hairyheron.

CHANGELOG.rdoc

@@ -2,6 +2,10 @@
 
 Per-release changes to Geocoder.
 
+== 1.0.3 (??)
+
+* Fix bug: stop double-adjusting units when using kilometers (thanks github.com/hairyheron).
+
 == 1.0.2 (2011 June 25)
 
 * Add support for MongoMapper (thanks github.com/spagalloco).

lib/geocoder/stores/active_record.rb

@@ -66,7 +66,6 @@ module Geocoder::Store
       # * +:exclude+ - an object to exclude (used by the +nearbys+ method)
       #
       def near_scope_options(latitude, longitude, radius = 20, options = {})
-        radius *= Geocoder::Calculations.km_in_mi if options[:units] == :km
         if connection.adapter_name.match /sqlite/i
           approx_near_scope_options(latitude, longitude, radius, options)
         else