This allows blueslip to catch exceptions from the event handlers on
these elements in addition to the other benefits that not using
inline handlers provide.
(imported from commit 2bdcb2496c6c08fa7228a20ce6164b527cf64e41)
...rather than embedding them into index.html.
This is only acceptable for dev, but the next commit adds an alternative
mechanism for prod.
There isn't actually a manual deployment step here. However, this commit won't
work on staging / prod without the next one (since we don't serve
zephyr/static/templates in prod).
(imported from commit dce7ddfe89e07afc3a96699bb972fd124335aa05)
This is controlled by listing multiple comma-separate usernames in the
personal message sending box.
(imported from commit 06c9dadb7977b98f88ad31e5df453b59f1afad96)