#######################
LoginAPI (api/login)
#######################
GET -> Authentication method 
    Out:
        200 -> AUTH_RESULT = "OK" : Authentication sucessful
        401 -> AUTH_RESULT = "AUTHENTICATION_FAILURE" : Wrong login/password
        403 -> AUTH_RESULT = "NOT_ALLOWED" : User is not allowed for this application
        201 -> AUTH_RESULT = "ALREADY_LOGGED" : A user is already logged on this session

DELETE -> Logout current user
    Out:
        200 -> AUTH_RESULT = "OK" : Logout sucessful


#######################
UserInfoAPI (api/userInfo)
#######################
GET -> Get the current logged user, return None if no one is connected
    Out:
        200 -> USER = <USER_OBJECT>|None : Dictionary containing user infos or None


########################
Redirect to cas auth (/login)
########################
Redirect to cas auth