rocon_tools: 0.1.8-0 in 'indigo/distribution.yaml' [bloom]

Increasing version of package(s) in repository `rocon_tools` to `0.1.8-0`:

- distro file: `indigo/distribution.yaml`
- bloom version: `0.5.2`
- previous version for package: `0.1.6-0`

## rocon_launch

```
* bugfix a variable name typo in ``RosLaunchConfiguration`` (``option``->``options``).
```