prepare release v0.18.3

prepare release version

Prepare release 0.18.1

fix clippy

release v0.17.0

Prepare release v0.16.0 (#157)

Fixed issue with only tcp feature enabled (#152)

prepare release 0.15.0 (#150)

update changelog for 0.14.8

Updated mio dependency to 0.8 (#135)

* update dependency

* protected against large enum varian from cargo clippy

* cargo clippy

* changelog

* prepare release 0.14.7