Merge branch 'release/0.2.0'
Merge branch 'master' into develop
Drop Bundler's tasks; gemspec code to build prerelease gems versioned by `git describe`.
Revert "Drop Bundler's tasks; gemspec code to build prerelease gems versioned by `git describe`."

This reverts commit afcf815eb0afc81f6632fc94a82341fd38474e5e.
Add info to rake display system features before the tests.
Bump Aruba timeouts.
Merge branch 'develop' into feature/refactor-configuration
Drop mixlib-config dependency from the gem