Manually allow different roles to create users with shared email

Created a patch and a new permission "allow create user with shared email" for latest dev version to limit sharedemail user creation for specific roles.
Cheers,
Jacq

Good idea and would indeed offer for a more granular control.

However a lot of sites are already using this module w/o this permission check, so it may not be working as intended for a lot of instances. Some sort of an update hook seems required here.