[TASK] Raise version to 1.4.1-dev

Change-Id: I382a17614791fbf3071d8b3f2b2dc139d4e0e9c1
Reviewed-on: http://review.typo3.org/35347
Reviewed-by: Xavier Perseguers <xavier@typo3.org>
Tested-by: Xavier Perseguers <xavier@typo3.org>