def setup
      @log.debug "using journalfile: " + self.settings['journalfile']
      journalfile = self.settings['journalfile']
      store = YAML::Store.new(journalfile, true)
      store.ultra_safe = true
      return store
    end
def setup
      @log.debug "using journalfile: " + self.settings['journalfile']
      journalfile = self.settings['journalfile']
      store = YAML::Store.new(journalfile, true)
      store.ultra_safe = true
      return store
    end
Create a new journal file, or load an existing one if it already exists.
 @return [YAML::Store] instance of YAML::Store using the configured journal file.