minor #443 Update .travis.yml (andreybolonin, chalasr)
minor #443 Update .travis.yml (andreybolonin, chalasr)

This PR was merged into the 2.x-dev branch.

Discussion
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Update .travis.yml

Commits
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69135da Build on Symfony 4.1-dev
bbe1beb Update .travis.yml

chalasr/LexikJWTAuthenticationBundle,lexik/LexikJWTAuthenticationBundle