Add support for ovi.com, aka. Nokia maps. No reverse geocoding so far

lib/geocoder/lookup.rb

@@ -29,6 +29,7 @@ module Geocoder
         :yandex,
         :nominatim,
         :mapquest,
+        :ovi,
         :test
       ]
     end

lib/geocoder/lookups/ovi.rb

+# ovi.com store
+
+require 'geocoder/lookups/base'
+require "geocoder/results/ovi"
+
+module Geocoder::Lookup
+  class Ovi < Base
+
+    private # ---------------------------------------------------------------
+
+    def results(query)
+      return [] unless doc = fetch_data(query)
+      return [] unless doc['Response']
+      doc['Response']['View'].first['Result']
+    end
+
+    def query_url_params(query)
+      {
+        :searchtext => query.sanitized_text
+      }
+    end
+
+    def query_url(query)
+      "http://lbs.ovi.com/search/6.2/geocode.json?" + url_query_string(query)
+    end
+  end
+end

lib/geocoder/results/ovi.rb

+require 'geocoder/results/base'
+
+module Geocoder::Result
+  class Ovi < Base
+
+    ##
+    # A string in the given format.
+    #
+    def address(format = :full)
+      fail unless d = @data['Location']['Address']
+      d['Label']
+    end
+
+    ##
+    # A two-element array: [lat, lon].
+    #
+    def coordinates
+      fail unless d = @data['Location']['DisplayPosition']
+      [d['Latitude'].to_f, d['Longitude'].to_f]
+    end
+
+    def state
+      fail unless d = @data['Location']['Address']
+      d['State']
+    end
+
+    def province
+      fail unless d = @data['Location']['Address']
+      d['County']
+    end
+
+    def state_code
+      fail
+    end
+
+    def province_code
+      fail
+    end
+
+    def country
+      fail unless d = @data['Location']['Address']['AdditionalData']
+      d.find{|ad| ad['value'] if ad['key']=='CountryName'}
+    end
+
+    def country_code
+      fail unless d = @data['Location']['Address']
+      d['Country']
+    end
+  end
+end