Transfer domain from a Heroku Zerigo account to another

Say you have a domain foo.com that's tied to a Heroku Zerigo addon, you can import them and all its CNAME entries into another account very easily.

Steps:

1. In old Zerigo account, click on domain  >> "Tools" >> "Reassign domain"
2. Click "Generate a reassignment token" button and copy the token string
3. In new Zerigo account, click on "+ add / import" >> "Add reassigned domain"
4. Enter the transferring domain name and the copied reassignment token
5. Click "Add" and voila!