[URGENT] first login page

[sachabinder]

Change the model and add an active field. By default, it is false.
So, the user will be redirect to a page where he will need to personalize his profile and change PSWD.
Currently : impossible to change pswd without this feature, except by the email way.

By sending this informations, it will put the field to true, and he will be able to use uPont normally.