There is no persistent storage in the application by the time we're expecting
students to write ``Response`` handling functions. So add some more guidance
that we only expect placeholder values to be used, this wasn't sufficiently
clear. Fixes#3
Updated the latter placeholder values to match the guidance offered, for
consistency.
Updated the configuration ``helloMsg`` value and some of the tests to be a bit
more sensible, even if only a little.
Will replace with SQLite because Postgres could be a giant pain.
Finish restructuring the cabal files/projects correctly to set a
better example for people.