The tool needs to run this function, since it uses django's send_email
directly instead of going through our zerver.lib.send_email.send_email
codepath.
This is a preparatory commit for using isort for sorting all of our
imports, merging changes to files where we can easily review the
changes as something we're happy with.
These are also files with relatively little active development, which
means we don't expect much merge conflict risk from these changes.
Previous cleanups (mostly the removals of Python __future__ imports)
were done in a way that introduced leading newlines. Delete leading
newlines from all files, except static/assets/zulip-emoji/NOTICE,
which is a verbatim copy of the Apache 2.0 license.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
Make it less likely that further development will break compatibility with
ZULIP_ADMINISTRATORs of the form "name <email>".
Note that the suggested value for this setting has been
'zulip-admin@example.com' for a while, so hopefully this commit causes no
change for most installations.