Release 0.18.3

# History

## 0.18.3

Install/update via the bootstrap script:

```shell
wget https://raw.githubusercontent.com/dokku/dokku/v0.18.3/bootstrap.sh
sudo DOKKU_TAG=v0.18.3 bash bootstrap.sh
```

### Bug Fixes

- #3660: @josegonzalez Trigger builder-release for dockerfile correctly
- #3655: @znz Fix filename of sshcommand tarball
- #3648: @josegonzalez Copy the deb file before creating the image

### New Features

- #3656: @josegonzalez Allow users to customize the container start command
- #3657: @josegonzalez Show error message when docker-related build commands fail
- #3654: @josegonzalez Update herokuish to 0.5.3

### Documentation

- #3652: @josegonzalez Correct issue in inspect call for issue template

docs/assets/versions.json

@@ -15,6 +15,6 @@
     "0.15.5",
     "0.16.4",
     "0.17.9",
-    "0.18.2"
+    "0.18.3"
   ]
 }