Add a few tests for the Guest model.

Note that it will fail; see the commented-out line in guest.rb:11.
Add validation to Guest, and a defect in Guest::new_from_cnetid.
Immediately after `cap install .`
Add README.md before cloning the project into GitHub.
First changes to Capfile, config/deploy.rb, and config/deploy/production.rb

Absolutely not complete.
Tweaks in appearance.

Add a favicon. Tune the scaffolds.css.
Handle the case where a Guest or Guest#party is nil.

Suppress display of a nil party in the Guest show and edit views.
Retry #new if GuestsController#create_from_cnetid doesn’t turn up a person.
Put the application on Central time.

It doesn’t look as if that actually happens, but I’ll have to restart the app to be sure.
Current state of deployment preparation.

Set the DB parameters for production (known to be correct)
Set a _lot_ of parameters in config.deploy.rb for Capistrano.
Twiddle with Capfile (more to come)
Add the mysql (and mysql2?!) gems to the Gemfile. Also the 'thin' web server (needed to get Safari to show non-blank pages).
Remove rbenv from Capfile.