(UserDefaultVisibility) Allow configuration of default user visibility
(UserDefaultVisibility) Add tests for default visibility VIA user import
Merge branch 'user-default-visibility' of https://github.com/mrvisser/Hilary into user-default-visibility
(UserDefaultVisibility) Minor code cleanup
Merge branch 'user-default-visibility' of https://github.com/mrvisser/Hilary into user-default-visibility
Doc improvement