fix flicker of fast tilemap (#20387)

setPercent after initialization (#19718)

update versoin code (#19265)

sync Chinese release notes with English improvements (#18832)

* sync chinese release notes with English improvements

* little fix

* update doctoc

* update releaseNotes doctoc

fix misspelling on RELEASE_NOTES.md (#18338)

update release date (#17870)

JSB SocketIO.connect supports to pass a CA cert file (#17736)

* JSB SocketIO.connect supports to pass a CA cert file

* The second parameter of SocketIO.connect function is probably a `option` object. JSB just ignores it.

[ci skip]Changelog releasenote (#17695)

* update release note

* update toc

* update changelog

update version (#17230)

update version and release note (#17170)