I like your MessageLibrary, seattlejohn. It works as advertised, and I think it
would be quite useful for a larger project.
In the humble hope of offering something more useful to you than an 'attaboy': You put a lot of work into the pod, and evidently want it to be as informative as possible; still, I found the inline pod very difficult to read around while trying to see what the code was doing (until I loaded the source in a highlighting editor).
Also, it might be helpful if your comments on how to use it were even more clearly distinguished from what's happening inside the program (for example, I'm thinking here of the pod comments on Private Methods and variables).
Thank you for sharing your work, here.