Temporary log in links for new users

Issue Summary

I know the normal registration process generates an email to the user that includes a one-time login link to get them into the site without typing anything.

I don't know how that's done, but I can look it up. Shouldn't be too hard. I just wanted to put this here as I think it's a good user-oriented feature, especially since these users will spontaneously receive the email as someone else registered for them.

This is the email from the normal registration process

some_username,

Thank you for registering at LSSC. You may now log in to http://some.website.com/user using the following username and password:

username: some_username
password: some_password

You may also log in by clicking on this link or copying and pasting it in your browser:

http://some.website.com/user/reset/6/1236706324/07f10790f48b27b038789b28...

This is a one-time login, so it can be used only once.

After logging in, you will be redirected to http://some.website.com/user/6/edit so you can change your password.

-- Site team

Notice the one-time use link

This is the email generated by Ucreate

Some_welcome_message

================================================

We have created an account for you on Site
Array.

You can log in to the site with the following username and password

some_username
some_password

Please change your password after the first time you log in.

Welcome to Site