[TASK] Release Version 1.2.6

Change-Id: If3e8c86b22c0b4d5b9fe3bd31c2a69eb91a98b05
Reviewed-on: http://review.typo3.org/32965
Reviewed-by: Tim Lochmüller <tim@fruit-lab.de>
Tested-by: Tim Lochmüller <tim@fruit-lab.de>