Update dom_crawler.rst
Update --structure option
Traduction

La traduction était un peu littérale.
Merge pull request #509 from jocelyndubois/patch-1

Traduction
Merge pull request #508 from Riges/patch-3

Update --structure option
Merge pull request #507 from NAYZO/patch-3

Update dom_crawler.rst
Merge pull request #512 from symfony-fr/2.4

Merging 2.4