Arti 1.2.4

The current crate versions are:
```
test-temp-dir           0.2.2
fslock-guard            0.1.3
hashx                   0.1.5
equix                   0.1.5
tor-basic-utils         0.19.0
tor-async-utils         0.19.0
caret                   0.4.6
fs-mistrust             0.7.11
safelog                 0.3.7
retry-error             0.5.3
tor-error               0.19.0
tor-config              0.19.0
tor-units               0.19.0
tor-geoip               0.19.0
tor-rtcompat            0.19.0
tor-rtmock              0.19.0
tor-log-ratelim         0.19.0
tor-rpcbase             0.19.0
tor-memquota            0.18.0
tor-llcrypto            0.19.0
tor-protover            0.19.0
tor-bytes               0.19.0
tor-hscrypto            0.19.0
tor-socksproto          0.19.0
tor-checkable           0.19.0
tor-cert                0.19.0
tor-linkspec            0.19.0
tor-cell                0.19.0
tor-proto               0.19.0
tor-netdoc              0.19.0
tor-consdiff            0.19.0
tor-netdir              0.19.0
tor-relay-selection     0.19.0
tor-persist             0.19.0
tor-chanmgr             0.19.0
tor-ptmgr               0.19.0
tor-guardmgr            0.19.0
tor-circmgr             0.19.0
tor-dirclient           0.19.0
tor-dirmgr              0.19.0
tor-keymgr              0.19.0
tor-hsclient            0.19.0
tor-hsservice           0.19.0
tor-hsrproxy            0.19.0
arti-client             0.19.0
arti-rpcserver          0.19.0
arti-hyper              0.19.0
arti                    1.2.4
```

                                    * * *

                 "Oh, goodness!" the wub cried. "Is that all you
                 people can think of, killing and cutting?"

                 — Philip K. Dick,  _Beyond Lies the Wub_
-----BEGIN PGP SIGNATURE-----

iQEzBAABCAAdFiEEj1aqWAC6TiMl7/zIOUbgrecrrJkFAmZgpbsACgkQOUbgrecr
rJlMqgf8DRHr4BH9fUbDWBFP8ShanY4Z2KOajlCez9wyVbqRZy7vf56eUyadCwfu
i+p1uX6k28sMOPfnOdQnmK9Rup0SLyIWMNotkoftxLrJWNjY/TZHYAmXooXB/8b5
17MNBh5DI7l6Fu4R9p2aKW+f37rRyBVuKwrQ/i9LwhEBzrZ7/8N0AWKK/t1Z1iua
UNHkCz/G2AkLBK8MC5zDcbpTzDPuJLXlBjBMHQz2uGJXZbn95zx5EvH+0OKCMX/w
ZJjmXozCyMNouz+017uAGu4enL5BZ3X3R4KazkvwHi6WJS+fZ0E/nE7uck3txl6m
AAH57lfZQfqUMUS+GXdeezs+aahL/Q==
=bktT
-----END PGP SIGNATURE-----