[TASK] Set version to 0.9.dev

Change-Id: I4f5e6bd2651c9d37e8d45f0dfb28fa4c4b935464
Reviewed-on: https://review.typo3.org/24804
Reviewed-by: Stefan Rotsch
Tested-by: Stefan Rotsch
[TASK] TYPO3 6.x compatibility fixes

Change-Id: I15ef0d5918dde9cc11e1082760460257560bb25b
Reviewed-on: https://review.typo3.org/24805
Reviewed-by: Stefan Rotsch
Tested-by: Stefan Rotsch