[TASK] Raise version to 1.4.0

Change-Id: Ib846f23af00e9d191257d2b79ffa64b6ced6eca1
Reviewed-on: http://review.typo3.org/35024
Reviewed-by: Xavier Perseguers <xavier@typo3.org>
Tested-by: Xavier Perseguers <xavier@typo3.org>