[sstarr]

For client projects I'm a big fan of Lighthouse (https://lighthouseapp.com/). It has a great balance of advanced features and ease of use for non-techies.

* Tickets can be created and updated via email

* Using the GitHub service hook, you can tag commit messages so that they appear as comments on a ticket as well as change the state of the ticket (For example: "Refactor widget behaviour [#123 state:resolved]")

* You can setup milestones (with or without a due date) and assign tickets to them

* Bulk editing of tickets

* Markdown in ticket description and comment fields

* You can easily create "buckets" of tickets based on search terms and filters

* Bugsnag and Airbrake can be configured to automatically create tickets for new exceptions in your app

* Probably some other great features that I've forgotten to mention