Ajout de la librairie et modification du fragmentDay
Changement du fragment rendezvous
changement du fragment Projects
Refactor some files
Improved adapters
Again improved Adapters
Added utils to avoid NullPointerException
Add jackson for marksFragment and add the model.
Merge remote-tracking branch 'origin/jackson'

Conflicts:
	src/com/googlelab/epitechforandroid/adapters/MarksAdapter.java
	src/com/googlelab/epitechforandroid/adapters/ProjectsAdapter.java
	src/com/googlelab/epitechforandroid/fragment/EpitechDay.java
	src/com/googlelab/epitechforandroid/fragment/EpitechMarks.java
	src/com/googlelab/epitechforandroid/fragment/EpitechProjects.java
	src/com/googlelab/epitechforandroid/fragment/EpitechRendezVous.java