[TASK] Bump the version number to 0.5.74.

Change-Id: I5adea0156c003e35ba089606fe87e9349ab9098b
Reviewed-on: http://review.typo3.org/33054
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Tested-by: Oliver Klee <typo3-coding@oliverklee.de>