When the user register, we grab the language from the browser and use it
as first value for the corresponding user object. The user can then
later on modify it from his account area.
It is now possible to create private projects. To mark a project as
private, you simply go in the Administer > Tabs Access menu and select
"Private project". Only project members and owners together with the
extra authorized users will be able to access the project. The project
will not appear in the list of projects for not authorized users.
