Support de l'ajout de vidéo dynamiquement (seminaryview)
Merge remote-tracking branch 'remotes/origin/Version_0_1' into Version_0_1

Conflicts:
	educatus/src/educatus/client/gin/ClientModule.java
	educatus/src/educatus/client/presenter/SeminaryViewPresenter.java
	educatus/src/educatus/client/view/SeminaryViewView.java
SeminaryViewPresenter clean