Last many commits have been rewriting the UI code to be more reusable,
and adding tests, fixing bugs, and adding a Controller class to
separate UI from logic in an MVC way.

This change, part of that, is for fixing a bug in displaying
"moreChoices" properly in textui.askWhich.... (fix unfinished).
Bugfix, & switch from Eclipse to IntelliJ (though I don't know if the pom
change was really necessary for that), and fix complaints it had
about various things in the code.
The bugfix is in TextUI.ranOutOfVerticalSpace.