Added warning to institution registration email

Warning in email bolded saying ShelvAR is in alpha testing and is not
yet ready for commercial use.
Email gets sent to Dr. Brinkman
updated the email to have admin names for registration
updated admin contact during registration email
testing admin name in registration email
more testing with admin name
more testing with admin name
more testing with admin name
more testing with admin name
more testing with admin name
more testing with admin name
Debugging code for admin_name
Finally fixed admin name
Merge branch 'dev'

Merging again after activation email changes have been implemented.