Add parameter (default false) for creating a user if it doesn't exist already
NotFoundException should be easier to parse :)
+ Comment
Add welcome message email
Have to intercept emails in the SendMail class, not in EmailUtils
POST /user with an existing user should throw a 409, not a 401
Change the location where the NameConflict is thrown to the manager layer
Merge pull request #789 from kaysoky/AutoCreateSSOUser

Disable auto-create user via OpenID