[TASK] Release 1.5.0

Add TYPO3 CMS 7.0.x compatiblity

Change-Id: I0e0a01d0932ad47335b2a7c3157a207a086996e1
Reviewed-on: http://review.typo3.org/35450
Reviewed-by: Tim Lochmüller <tim@fruit-lab.de>
Tested-by: Tim Lochmüller <tim@fruit-lab.de>