Release 0.22.8

# History

## 0.22.8

Install/update via the bootstrap script:

```shell
wget https://raw.githubusercontent.com/dokku/dokku/v0.22.8/bootstrap.sh
sudo DOKKU_TAG=v0.22.8 bash bootstrap.sh
```

### Bug Fixes

- #4309: @josegonzalez Correct issue where verifying an app name would bail early

### Documentation

- #4307: @josegonzalez Specify that the dokku logo is for non-commercial use

contrib/dokku-installer.py

@@ -15,7 +15,7 @@ import subprocess
 import sys
 import threading
 
-VERSION = 'v0.22.7'
+VERSION = 'v0.22.8'
 
 def bytes_to_string(b):
     if type(b) == bytes: