Update Changelog.txt.
Optimize try/catch
Optimize Append with String.Format
Optimize some simple conditional assignments
Use array initializers
Remove always null encoding
Optimize VLC cast
Remove redundant unsafes
Remove redundant usings
Remove redundant String.Format
Remove redundant string casts
minor alignment fix
Fix underlined subtitle
Merge pull request #245 from alfaproject/unknownsubtitle11_underline

Fix UnknownSubtitle11 underline subtitles
Update Language
Merge pull request #246 from akismanolo/patch-3

thx :)
Added Thai language file - thx Bonfelder Straße :)
Updated change log
Merge branch 'master' of https://github.com/SubtitleEdit/subtitleedit
Fix some XML comments