Fixed #3135: added some more explanation about how the various error email settings work together.  Thanks, Simon G.
Fixed #3135: added some more explanation about how the various error email settings work together.  Thanks, Simon G.

git-svn-id: 4f9f921b081c523744c7bf24d959a0db39629563@4619 bcc190cf-cafb-0310-a4f2-bffc1f526a37

FlaPer87/django-nonrel,aparo/django-nonrel,FlaPer87/django-nonrel,FlaPer87/django-nonrel,aparo/django-nonrel,aparo/django-nonrel