Use dispatching for tce_file.php

Resolves: #64692
Releases: master
Change-Id: Ia71d781a4fd4bfe829691598db039db8a7afe690
Reviewed-on: http://review.typo3.org/36520


Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>