Update notes for submitted changes

* [RELEASE] Release of TYPO3 4.6.17
Update notes for submitted changes

* [TASK] Set TYPO3 version to 4.6.18-dev
Update notes for submitted changes

* [RELEASE] Release of TYPO3 4.7.9
Update notes for submitted changes

* [TASK] Set TYPO3 version to 4.7.10-dev