Helps in case the development environment is not using https.
We get the value from zerver/context_processors.py (which is
ultimately reading it from settings)
The queued email gets deleted if the user signs up before it gets sent.
Otherwise, they are reminded in 2 days that they still haven't signed up.
This addressses Trac #1812
(imported from commit c1bdc09c03ac576b08986e56994de72d52fd293b)
Rishi Gupta
Tim Abbott
David Roe
acrefoot
acrefoot