* Do not raise delivery failure on 4xx errors, increase stoplight threshold
Stoplight failure threshold from 3 to 10
Status code 429 will raise a failure/get retried
* Oops
HTTP connections must be explicitly closed in many cases, and letting
perform method close connections makes its callers less redundant and
prevent them from forgetting to close connections.
Currently, Mastodon will retry delivering toots for a bit over 1 hour.
This is a very short timespan when considering private and direct toots, which
cannot be seen by the recipient at all after the delivery attempts have failed.
Ideally, private and direct toots should have a different number of retries,
but I do not know how to do that.
