Contact Administrators Form should allow configuration of recipients

Discovered while attempting to configure the Contact Administrators Form on JAC.

I switched it on, left it on default (no custom message) and then filled in the form and submitted. I have SysAdmin privileges and I did not receive the notification.

I have heard that only the 'Administer' permission receives the email rather than the 'SysAdmin' permission.

It would be helpful to be able to:
1. Choose a separate list of recipients for the Contact Admin form as this will not always match the list of people with Administer permission
2. Have this appear as an option in "Administration -> General Configuration -> Edit Configuration" near where you turn the form 'On'