Add the persistent feature in the changelog

[skip ci]

Use udns instead of c-ares

fix #3226

Support the ident protocol

fix #3211

Start version 5.0

Release version 4.0

Little update to the changelog

Update the changelog

Update changelog with the history thingy

[skip ci]

Document the new behaviour to address nicknames, and add to changelog

Start version 4.0

Release 3.0

Trivial micro fix

Update the changelog by adding (all?) the changes in 3.0

Changelog into rst

Changelog into rst

Release version 2.0

Fix the date format in CHANGELOG file

Update the changelog

Add a changelog entry for the fixed_irc_server option

Add a reload add-hoc command