Run the following commands as root before deploying this branch:
# /root/zulip/tools/migrate-server-config
# rm /etc/zulip/machinetype /etc/zulip/server /etc/zulip/local /etc/humbug-machinetype /etc/humbug-server /etc/humbug-local
(imported from commit aa7dcc50d2f4792ce33834f14761e76512fca252)
The 'zulip' module contains the general setup for any server that
will run our app. The 'zulip-internal' module contains configuration
that is internal to Zulip the company.
(imported from commit 23c99dd889577c2917ddbf76892cf8f6cc66a13e)