core.certmanager: Apply TLS preset before global settings (thanks Menel)
Allows overriding settings via the global 'ssl' settings as before.
This order was probably accidental. That said, 'ssl' is a giant footgun
we will want to discourage use of.
For full information on our dependencies, version requirements, and
where to find them, see https://prosody.im/doc/depends
If you have luarocks available on your platform, install the following:
- luaexpat
- luasocket
- luafilesystem
- luasec