Add students to ClassPeriod
Merge remote-tracking branch 'origin/MAD-2_classSchool-Module-a-ajouter'

Conflicts:
	src/Madrasse/AdminBundle/Resources/views/Student/view.html.twig
Task #MAD-2 - classSchool - Module à ajouter
Manage to Student in class Period
Task #MAD-2 - classSchool - Module à ajouter