Update Ruby 2.4, 2.3 to latest version in .travis.yml.#1100

Merged

danascheider merged 1 commit intocucumber:masterfrom junaruga:feature/traivs-update-ruby23-24

Mar 30, 2017

+2-2

Commits on Mar 30, 2017

Update Ruby 2.4, 2.3 to latest version in .travis.yml.
junaruga
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