User registration terminology

User invitations currently follow this life cycle:

1. created
   Administrator says ok
2. accepted
   Invited user clicks on the link
3. validated

I think that it would be more consistent to say that the admins validated the invitation and that the person then accepts the invitation to join the Nuxeo Platform.

Would it be possible to rename the life cycle states :

• accepted -> Approved or Validated (when the admin says ok)
• validated -> Accepted (when the user clicks on the link in the invitation email)
• created -> Created

Don't forget the capital letter at the beginning to be consistent with regular CAP document life cycle states.

The following items would also need to be renamed to be consistent:

• Accept link in User registration requests tabs -> Approve or Validate (depending on the life cycle state)
• Validate button in User registration requests tabs -> Accept