fgm/front__codeschool-react: Adapted version of the code written during the CodeSchool "Powering up with React" course. Also contains the followup code from https://github.com/codeschool/WatchUsBuild-React @ level1-first_component

Frederic G. MARAND fcf5fedf41 L1.7.2: evaluations within JSX. ESLint checks.		%!s(int64=7) %!d(string=hai) anos
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components.js	fcf5fedf41 L1.7.2: evaluations within JSX. ESLint checks.	%!s(int64=7) %!d(string=hai) anos