Use node-sass to minify CSS
Use sass-spec and a Rakefile
Clean output and expectation before comparison
Fix content type detection
Clean `expected_output_clean.css` files
Remove `@charset` during clean phase
Track Bundler config
Return `nil` when mixed test results
Add a readme and comment the Rakefile
Refactor Rakefile, add parallelism and progress
Update tests.yml
Update tests.yml
Refactoring to support multiple tests/spec directories
Separate `spec` and `sass-spec` tasks
Improved tests
Add rake to explicit depencies
Fix task prerequisites
Added .DS_Store and .npm-debug.log files to .gitignore
Fixed an ordering issue in _data/features.yml
Added two links to issues in _data/issues.yml