Subtitles: fixed handling of WrapStyle flag.
Revert "Subtitles: fixed handling of WrapStyle flag."

This reverts commit db30b7b86c460b03b51a9eba35f78cbbcd330db5.
Updated Czech translation
Subtitles: fixed handling of WrapStyle flag again.
fixed typo for 89ab140cb9
Improve the naming of subtitles tracks.

Avoid showing an useless and ugly comma when possible.

This commit fixes #1600.