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Kurator-Akka includes a StringAppender actor that adds a configurable suffix to each string it receives and outputs the modified strings. Add a new component to your workflow file (it may be easiest to copy and paste the GreetingSource component). It doesn't matter where you add the component, as long as it is somewhere in the components section of the file. Give the new component an id of GreetingEmphasizer and a type of StringAppender. StringAppender actors take a parameter called suffix. Edit your GreetingEmphasizer component to make a single exclamation point the default suffix (enclose the exclamation point in single quotes). Finally, add a listensTo property to GreetingPrinter and configure the component to receive its input from GreetingSource.
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