Stop searching config if we reach root directory
CLI: Use `path.join()` to join paths
Update Gonzales PE
Merge pull request #147 from csscomb/tg/test-helpers

Tests: Add helpers
Merge pull request #151 from csscomb/tg/get-config-path

Stop searching config if we reach root directory
Merge pull request #152 from csscomb/tg/gonzales-20x

Update Gonzales PE
Fixing the detection of block-indent for an empty block, fixes #144