Base template that features :
- user system with roles (admin, user) that grant page access permission ;
- registration with invitation code from already registered user ;
- mail confirmation to activate account ;
- registration can be open/closed by administrators ;
- registration is restrain with a depth from root account and is editable by admin ;
- user have a default identicon generated when they register ;
- user can update their avatar, their info and password, and delete their account.