Release 0.19.1

# History

## 0.19.1

Install/update via the bootstrap script:

```shell
wget https://raw.githubusercontent.com/dokku/dokku/v0.19.1/bootstrap.sh
sudo DOKKU_TAG=v0.19.1 bash bootstrap.sh
```

### Bug Fixes

- #3713: @josegonzalez Require nginx 1.13+ in order to enable tls1.3

contrib/dokku-installer.py

@@ -14,7 +14,7 @@ import subprocess
 import sys
 import threading
 
-VERSION = 'v0.19.0'
+VERSION = 'v0.19.1'
 
 hostname = ''
 try: