Summary:
I was trying to set up a http hook, but despite setting the config,
the endpoint wasn't getting a request. I was advised on IRC by balpert to
restart my daemons and it worked great after I did that.
Since this information isn't in the documentation, I am adding it to the
description of the option, so it helps the next person.
Test Plan: N/A
Reviewers: #blessed_reviewers, epriestley
Reviewed By: epriestley
CC: Korvin, epriestley, aran, spicyj
Differential Revision: https://secure.phabricator.com/D8447
