Process the issues of category "Security"

[WebDevJL]

https://codeclimate.com/github/WebDevJL/EasyMvc/issues/categories/security

[WebDevJL]

For all access to super globals, use the filter_input method (see http://php.net/manual/fr/function.filter-input.php).

[WebDevJL]

filter_input works for all super globals except $_FILES.