[TASK] Raise version to 2.0.2-dev

Change-Id: Ia19ae159bbf3061a046077982c1110b5f2adcf2c
Reviewed-on: http://review.typo3.org/35587
Reviewed-by: Xavier Perseguers <xavier@typo3.org>
Tested-by: Xavier Perseguers <xavier@typo3.org>