Update Ruby Advanced - 01 basics slide

- Add quiet_assets and high_voltage gem
- Add Changelog, Git Commit Messages and Communication to workflows
- Add Agile methods section to workflows
- Add Asana and Basecamp to Project Management / Trackers section
- Add Communication section to Tools & Services including HipChat, Flowdock and Slack
- Rename Trackers section into Project Management / Trackers
- Update decent_exposure url