Merge pull request #12 from creeonix/master

replaced file indexes with persistent names, disable pdf generation by d...
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Merge branch 'master' of github.com:reqres-api/reqres_rspec
downcase and fix spec file names
Merge pull request #13 from reqres-api/downcase_and_fix_filenames

downcase and fix spec file names
bump version
fix gsubs
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Made code more organized
Customization for grouping methods and formatters