Release v1.6.3 version (gin-gonic#2353)

* chore: update version to v1.6.3

* update changelog

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

fix missing initial sync.RWMutex (gin-gonic#2305)

* fix missing initial sync.RWMutex

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

* Add unit testing.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

bump to v1.6.1 version (gin-gonic#2295)

Co-authored-by: thinkerou <thinkerou@gmail.com>

Improved the graceful shutdown and restart section and removed… (gin-…

…gonic#2288)

ready to release v1.5.0 (gin-gonic#2109)

* ready to release v1.5.0

* add some commit log

* Update CHANGELOG.md

Co-Authored-By: Dominik-K <dominik-k@mailbox.org>

* Update CHANGELOG.md

Co-Authored-By: Dominik-K <dominik-k@mailbox.org>

* Update CHANGELOG.md

Co-Authored-By: Dominik-K <dominik-k@mailbox.org>

* Update CHANGELOG.md

Co-Authored-By: Dominik-K <dominik-k@mailbox.org>

* Update CHANGELOG.md

Co-Authored-By: Dominik-K <dominik-k@mailbox.org>

* Update CHANGELOG.md

Co-Authored-By: Dominik-K <dominik-k@mailbox.org>

* Update CHANGELOG.md

Co-Authored-By: Dominik-K <dominik-k@mailbox.org>

* Update CHANGELOG.md

Co-Authored-By: Dominik-K <dominik-k@mailbox.org>

* Update CHANGELOG.md

Co-Authored-By: Dominik-K <dominik-k@mailbox.org>

* Update CHANGELOG.md

Co-Authored-By: Dominik-K <dominik-k@mailbox.org>

* Update CHANGELOG.md

Co-Authored-By: Dominik-K <dominik-k@mailbox.org>

* Update CHANGELOG.md

Co-Authored-By: Dominik-K <dominik-k@mailbox.org>

* Update CHANGELOG.md

Co-Authored-By: Dominik-K <dominik-k@mailbox.org>

* remove refactor and update readme pr

update vendor: ugorji/go (gin-gonic#1879)

* update vendor: ugorji/go

* fix

docs: add changelog for v1.3.0, update authors and version const (gin…

…-gonic#1478)

* docs: add changelog for v1.3.0, update authors and version const

*  add link for every referenced pull request (gin-gonic#1481)

* docs: add changelog for v1.3.0, update authors and version const

* add link for pr