def load_time_ranges
      @time_ranges = ActiveSupport::HashWithIndifferentAccess.new
      time_ranges = @config['time']
      time_ranges.each do |t,r|
        time_range = ActiveSupport::HashWithIndifferentAccess.new
        src_ranges ||= r
        src_ranges.map { |k,v| time_range[k.to_sym] = rangify_time_boundaries(v) }
        @time_ranges[t.to_sym] = time_range
      end

    end
def load_time_ranges
      @time_ranges = ActiveSupport::HashWithIndifferentAccess.new
      time_ranges = @config['time']
      time_ranges.each do |t,r|
        time_range = ActiveSupport::HashWithIndifferentAccess.new
        src_ranges ||= r
        src_ranges.map { |k,v| time_range[k.to_sym] = rangify_time_boundaries(v) }
        @time_ranges[t.to_sym] = time_range
      end

    end
Load ranges from config file