Update Email, Beanstalk, Hubot, JIRA, and Trello integrations
links.
The Hubot integrations section (/integrations#hubot-integrations)
was removed in an earlier redesign of /integrations. This commit
replaces the link with the hubot-scripts organization on
Github, which displays the comprehensive list of all integrations
available via Hubot.
Fixes#5875.
This makes supervisor see the service as cheerfully running
and let it alone, rather than constantly retry starting it.
Because the crash/restart loop means repeatedly spending a
couple of seconds loading Django and the app, separated by
brief periods while supervisor notices the crash and acts
on it, it was actually consuming about 30-50% CPU on the
zulipchat.com staging server.
ScheduledJob was written for much more generality than it ended up being
used for. Currently it is used by send_future_email, and nothing
else. Tailoring the model to emails in particular will make it easier to do
things like selectively clear emails when people unsubscribe from particular
email types, or seamlessly handle using the same email on multiple realms.
Jack Zhang
Greg Price
Rishi Gupta