[BUGFIX] Fix user.image

And also support create and edit without preview step

Change-Id: Ifd1c53c7a5b0ae7dd243efd90c452d1c4d7f7541
Reviewed-on: http://review.typo3.org/33022
Reviewed-by: Sebastian Fischer <typo3@evoweb.de>
Tested-by: Sebastian Fischer <typo3@evoweb.de>