Fixing things for JUnit day. Typos for first section.
Added todo.
More typos.
More typos up to "running tests".
Added more TODO.
Typos up to the end.
Typos.
Edited out a bad exercise.
Simplified title.
Moved exercise on "final" to the end. The important stuff is the other.
Added notes on year2 and year3.
Adapted the Recursion II day for year2.
(Painful) Typo.