minor #997 Updated the Travis config (javiereguiluz)
minor #997 Updated the Travis config (javiereguiluz)

This PR was squashed before being merged into the master branch (closes #997).

Discussion
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Updated the Travis config

Commits
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42fc1d3 Updated the Travis config

TomasVotruba/symfony-demo,bocharsky-bw/symfony-demo,TomasVotruba/symfony-demo,symfony/symfony-demo,symfony/symfony-demo,javiereguiluz/symfony-demo,Codeception/symfony-demo,TomasVotruba/symfony-demo,Codeception/symfony-demo,Codeception/symfony-demo,bocharsky-bw/symfony-demo,symfony/symfony-demo,javiereguiluz/symfony-demo,voronkovich/symfony-demo,bocharsky-bw/symfony-demo,voronkovich/symfony-demo,javiereguiluz/symfony-demo,voronkovich/symfony-demo