Original commits:

* Updated instructions

* 更新说明

* 更新说明

* 更新说明

* 更新说明

* 更新说明

* Updated instructions

* Updated instructions

Merge pull request #1516 from Grasscutters/more-events

Co-authored-by: Luke H-W <Birdulon@users.noreply.github.com>

Co-authored-by: Luke H-W <Birdulon@users.noreply.github.com>

Co-authored-by: Luke H-W <Birdulon@users.noreply.github.com>

Original commits:
* setConst translation
* New pl README link
* Polish README
* fix

Changed charset of FileReader in ConfigContainer from default to utf-8.
Merge pull request #1600 from Someone999/development

修正 用户登录提示

Replaces tab indents with an extra linebreak.
Also adds / to the start of command usage.
Neither of these changes affect messages to the server console log.

Merge pull request #1584 from millet6/patch-1

Suppress stacktrace on missing questkeys file

Please for the love of god use `debug` for information not important to the enduser when starting the server.

更新汉化内容
Update Chinese content

Merge pull request #1579 from Hartie95/nullfix

Merge pull request #1581 from akatatsu27/development

Added missing some commands translation, and fixing up another mainlander's CHS = CHT mindset.

- Add unlockall translations

Major quest framework improvements