Uninitialized constant AuthenticatedSystem

I’ve just had a little snafu installing restful_authentication in a
new app, and thought I would list it here for archival purposes.

Firstly, there are messages about files not existing. My fix was to
manually create lib and test/fixtures directories. (Remember, this is
a brand new application.)

Secondly, There were “uninitialized constant” messages re.
AuthenticatedSystem. My fix was to add “require
‘authenticated_system’” to the file where AuthenticatedSystem was
included.