Update zh-CHS.xml

typo fixes, and some translations for better understanding.
show horizontal scrollbars to see all of entry

It was not possible to see the full entry text. So displaying horizontal
scrollbars is the easiest fix.
Merge pull request #332 from LeonCheung/patch-1

Update zh-CHS.xml
Added UTF-8 BOM header in Chinese translation
Merge pull request #334 from FroggieFrog/Horizontal_Scrollbars

show horizontal scrollbars to see all of entry
Updated Korean language file - thx domddol
Merge branch 'master' of https://github.com/SubtitleEdit/subtitleedit
translations: automated XML upkeep
Merge pull request #335 from xylographe/upkeep

translations: automated XML upkeep
Fix for #336 (auto-break)
Merge branch 'master' of https://github.com/SubtitleEdit/subtitleedit
Updated Slovenian translation - thx Hawk :)
Updated change log
Update AppVeyor config.
Improve Matroska files processing
Merge pull request #294 from SubtitleEdit/matroska

Improve Matroska file handling
Optimize batch convert threading
Merge pull request #293 from SubtitleEdit/batch_convert

Improve batch convert threading
Convert some delegates to lambdas
Fixed typos