snaplet-mysql-simple-0.2.1.0: Changelog.md

## Version 0.2.1.0

Fix Snap.Snaplet.Auth.Backends.MysqlSimple, courtesty of klasske.

## Version 0.2

Do not export `withTransaction` as it was broken. It needs a different kind
of transaction pool.

## Version 0.1

Very straightforward port from `snaplet-postgresql-simple`.