add typo fix, es translation, indentation and using before_install instead of before_script

                   
|Q            |A  |
|---          |---|
|Bug Fix?     |n  |
|New Feature? |n  |
|BC Breaks?   |n  |
|Deprecations?|n  |
|Tests Pass?  |n  |
|Fixed Tickets|   |
|License      |MIT|
|Doc PR       |   |
                   


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there is a Pr in travis to set a composer install default as install: in the future then it will be wrong to do before_script as it would have already install it. It is a matter of using the right key. Right now both will work.