Use Python 3.8 in Sublime Text 4

Added "reset_diff_markers" setting for resetting the diff markers in …

…the gutter (defaults to true)

[ST3] Using Sublime Text's cache directory (seanliang#90 and seanlian…

…g#92, thanks to @gh640 and @evandrocoan)

- Save the cache contents only when necessary

- Handle the unload event to avoid AttributeError (seanliang#68, thanks to @Timandes)

- Add a new option "confidence" (seanliang#66, thanks to @doraemoncyx)

- A better handle for restoring selections (seanliang#67, thanks to @tianjun9)

Restore folded regions after reloading (seanliang#49, thanks to @tiny…

…mins)

- Added "convert_on_find" setting for converting the text in Find Res…

…ults view (defaults to false). (seanliang#39, thanks to @songenhin)

- A better handle on Codecs plugin
- Change all setting options to boolean type (true or false)
- Encode selection for empty file (seanliang#44 and seanliang#45, thanks to @knight9999 and @fyears)
- Sync chardet to version 2.3.0

Merge pull request seanliang#41 from yoonian/master

Prevent warning message during converting cp949 file

- Let user choose the encoding for possible UTF-8 files (seanliang#38,…

… thanks to @pierrewrs)

- Update outdated links

Merge branch 'master' of https://github.com/seanliang/ConvertToUTF8