Functionality to pass optional :min_radius value to 'near' searches. Only works with ActiveRecord and not Sqlite.

  Example:

    class City < ActiveRecord::Base
      geocoded_by :address, :lookup => lambda{|obj| obj.custom_lookup }

      def custom_lookup
        # return custom lookup for record
      end
    end

Allow to set custom lookup option for Geocoder.search, Geocoder::Query.new and ActiveRecord::Base.(reverse_)geocoded_by

  Examples:

    class City < ActiveRecord::Base
      geocoded_by :address, :lookup => :nominatim
    end

    Geocoder.search("address", :lookup => :nominatim)

Adds test for freegeoip host configuration

Couldn't get city from yandex

Neighborhood, Sub State and Sub State Code

This is more in line with existing signatures for similar methods.

This reverts commit d657ee16.

Added an "endpoint" method, to calculate a point given a starting point, distance and heading (in degrees)

http_proxy & https_proxy settings can now be specified with or without
the protocol prefix.

Previously it was returning an exception which is not the same behavior as the other lookups.

Lookups are always loaded even when they aren't used. So the geoip gem was being checked even when user wouldn't like to use the maxmind_local lookup.