[TASK] more documentation, finish translation

Change-Id: I4504f46b7e6e4a2fbc25b64bd62b9ea472ba7e09
Reviewed-on: http://review.typo3.org/32380
Reviewed-by: Tim Lochmüller <tim@fruit-lab.de>
Tested-by: Tim Lochmüller <tim@fruit-lab.de>