Warning when using "Space access" instead of "Update people" to grant access

[adehnert]

I think we have some noticeable group that's using the "Space access" page (​https://asa.mit.edu/groups/32/space/) instead of the "Update people" page (​https://asa.mit.edu/groups/32/edit/officers) because they don't know about or trust the latter page. I think the latter page is generally more convenient, so it seems unfortunate that people are using the former for bad reasons. We should try to combat that by adding a message to the former page saying something like "You should use this page only to grant access to somebody who (a) doesn't have an Athena account, or (b) needs access to only one of several offices. If those don't apply, please use the "Update people" page or email us with your use case."

[adehnert]

Fixed in commit e1d5c0583b8687f8f78ade3d947283922cf8ac72:

Author: Alex Dehnert <adehnert@mit.edu>
Date:   Sun Jun 2 19:16:27 2013 -0400

    Warn people off the "Space access" page (ASA-#233)