def growlyhash(force = false)
      @growlyhash = nil if force
      @growlyhash ||= flash.to_hash.select { |k, v| v.is_a? String }
    end
def growlyhash(force = false)
      @growlyhash = nil if force
      @growlyhash ||= flash.to_hash.select { |k, v| v.is_a? String }
    end
Hash with available growl flash messages which contains a string object.