feature #1111 Travis configuration updates and comments (michaelKaefer)
feature #1111 Travis configuration updates and comments (michaelKaefer)

This PR was squashed before being merged into the master branch.

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Travis configuration updates and comments

This PR contains 3 independent commits.

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78e321f Travis configuration updates and comments

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