Install rsync from yum on RPM-based Linuxes when running the prepare command.
Merge pull request #157 from practicefusion/yum-install-rsync

Always install rsync from yum on RPM-based Linuxes
Add `test:all` Rake task to run both unit and integration tests
Use bundler in script/test to execute ruby
Update the Changelog

- Add latest changes and contributors.
- Categorize v0.1.0 changes as there as so many of them. :D
- Remove v0.2.0 goals as those will be better tracked by Github Issues.