Previously we required an account to associate a user to an organization.

Show user status on the user listing table

Previously only admins and department managers could show assigned tickets
on open queue -even- when the feature is disabled globally. This pull
request extends the same previlege to all agents.

Useful if the staff members administratively configure a static password
that the user should never change.

Deleting an organization with users will simply orphaned the users.

This is necessary so we can use the templates to show tickets assoaciated
with user as well as organization by simply switching the context.

Initial concept for user directory

Now it looks more like the email templates management page.

This will be triggered if the client follows a link from an email And the
help desk administrator has enabled the setting to require a login to create
a  ticket.

Client accounts now that the user is verified either via staff or the
client's email mailbox, there's a much lower risk to showing a verified user
other tickets and virtually no reason that an administrator should have to
turn the feature on.

This is the mode of the system if account registration is disabled