[CLEANUP] #5198 Make setUp and tearDown protected

Also convert some test case files from DOS to UNIX line endings.

Change-Id: Ie518e40f64f6992d9da646f390a7d8a7bb92356f
Reviewed-on: http://review.typo3.org/35454
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Tested-by: Oliver Klee <typo3-coding@oliverklee.de>