travis-ci/travis-cookbooks — pull request #308 by gildegoma (2014-05-02 06:24:52+00:00)
Title: Update CHANGELOG for Release 7.4.0

I updated changes.md (based on git history and http://blog.travis-ci.com/2014-04-28-upcoming-build-environment-updates/)

I also propose to properly tag/release each VM update, so we can easily checkout, differentiate, etc.