[RELEASE] Release of TYPO3 4.5.28

Change-Id: I60233a700dd013cc905f9b19bc5abf9d0b8cf26a
Reviewed-on: https://review.typo3.org/22524
Reviewed-by: TYPO3 Release Team
Tested-by: TYPO3 Release Team
[TASK] Set TYPO3 version to 4.5.29-dev

Change-Id: I73ac008099c789255f184785e52069d26764a03f
Reviewed-on: https://review.typo3.org/22525
Reviewed-by: TYPO3 Release Team
Tested-by: TYPO3 Release Team