Reverse coordinate order for Yandex.

On input and output (expects/returns lon,lat instead of lat,lon).

lib/geocoder/lookups/yandex.rb

@@ -18,6 +18,7 @@ module Geocoder::Lookup
     end
 
     def query_url(query, reverse = false)
+      query = query.split(",").reverse.join(",") if reverse
       params = {
         :geocode => query,
         :format => "json",

lib/geocoder/results/yandex.rb

@@ -4,7 +4,7 @@ module Geocoder::Result
   class Yandex < Base
 
     def coordinates
-      @data['GeoObject']['Point']['pos'].split(' ').map(&:to_f)
+      @data['GeoObject']['Point']['pos'].split(' ').reverse.map(&:to_f)
     end
 
     def address(format = :full)