typo.
#4 fix a lot of test errors caused by runtime exceptions in fest-assert.

fest-assert:1.4 has a dependency problem and therefore throws some
NoSuchMethodErrors at runtime. Falling back to 1.3 fixes that issue.
#4 fix event timing issues in test.
#4 adapt test to error message style of fest-assert:1.3.
#4 fix test by changing window size so that the test can scroll
vertically.
#4 fix test by giving window a minimum size so that the list is visible.
#4 fix test by correcting the expected exception type.
#4 fix test by giving window a minimum size.