hokuyo_node: 1.7.8-1 in 'hydro/distribution.yaml' [bloom]

Increasing version of package(s) in repository `hokuyo_node` to `1.7.8-1`:

- distro file: `hydro/distribution.yaml`
- bloom version: `0.5.10`
- previous version for package: `1.7.8-0`

## hokuyo_node

```
* Merge pull request #8 <https://github.com/ros-drivers/hokuyo_node/issues/8> from trainman419/hydro-devel
  Use rosconsole to set logger levels. Fixes #7 <https://github.com/ros-drivers/hokuyo_node/issues/7>
* Use rosconsole to set logger levels. Fixes #7 <https://github.com/ros-drivers/hokuyo_node/issues/7>
* Added changelog
* Contributors: Chad Rockey, chadrockey, trainman419
```