Working mail from notification. Still requires testing/cleaning
Add tests around checkout notification.
This also removes the ability to check out an asset to a location|asset
that requires acceptance/a Eula. For 4.1 we may think about how to
support such a thing, but at present it seems to make sense to only alow
such assets to be checked out to users, who can be responsible for the
items.
Daniel Meltzer
bb874012d9