Changelog out of date

[doughsay]

What happened in 1.5.2 and 1.5.3? Your changelog is out of date, and I'd like to know if you've fixed #346.

[tfmorris]

Github will show you what commits were added between any two tags. e.g. here's what changed between 1.5.2 and 1.5.3 v1.5.2...v1.5.3