refactor setup_translations
update readme [ci skip]

- instruction on how to use versioning with paper trail
bump version to 0.0.4
Merge branch 'release/v0.0.4'

* release/v0.0.4:
  bump version to 0.0.4
improve performance by reducing queries
update gem summary [ci skip]
add motivations to readme [ci skip]
add code climate badge [ci skip]