[TASK] Add title for 'edit localized metadata' button

This patch adds the title to the edit localized metadata button
in the filelist module. Because we don't have any translations
for the language names the title is done hardcoded in the class.

Resolves: #64598
Releases: master
Change-Id: I6220da7dccf09fce67fafb7336a5f5fb713aa81e
Reviewed-on: http://review.typo3.org/36370


Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Zbigniew Jacko <z.jacko@macopedia.pl>
Tested-by: Zbigniew Jacko <z.jacko@macopedia.pl>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>