[BUGFIX] ImageManipulationWizard calculates wrong token

This patch fix broken ImageManipulationWizard. Because of a wrong
token calculation the wizard was broken.

Resolves: #70618
Releases: master
Change-Id: Ibe77592bf7167fdd8b081e599fca969e2f625db6
Reviewed-on: http://review.typo3.org/44008


Reviewed-by: Andreas Fernandez <typo3@scripting-base.de>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Frans Saris <franssaris@gmail.com>
Tested-by: Frans Saris <franssaris@gmail.com>