def here_now_checkins(options={:limit => "50"})
      @foursquare.get("venues/#{id}/herenow", options)["hereNow"]["items"].map do |item|
        Foursquare::Checkin.new(@foursquare, item)
      end
    end
def here_now_checkins(options={:limit => "50"})
      @foursquare.get("venues/#{id}/herenow", options)["hereNow"]["items"].map do |item|
        Foursquare::Checkin.new(@foursquare, item)
      end
    end
returns a list of checkins (only if a valid oauth token from a user is provided)
 https://developer.foursquare.com/docs/venues/herenow.html
 options: limit, offset, aftertimestamp