Need to implement #cache! if you want to use CarrierWave::Storage::UpYun as a cache storage

[windy]

when I upgrade carrierwave to 2.0.0, using carrierwave-upyun 0.2.2

call this exception:

      def cache!(new_file)
        raise NotImplementedError.new("Need to implement #cache! if you want to use #{self.class.name} as a cache storage.")
      end

      def retrieve_from_cache!(identifier)
        raise NotImplementedError.new("Need to implement #retrieve_from_cache! if you want to use #{self.class.name} as a cache storage.")
      end

      def delete_dir!(path)
        raise NotImplementedError.new("Need to implement #delete_dir! if you want to use #{self.class.name} as a cache storage.")
      end

      def clean_cache!(seconds)
        raise NotImplementedError.new("Need to implement #clean_cache! if you want to use #{self.class.name} as a cache storage.")
      end

At new carrierwave version, these interfaces need be implmented.

[huacnlee]

Use 1.0.0

[windy]

Nice, thx!