control_toolbox: 1.10.4-2 in 'hydro/distribution.yaml' [bloom]

Increasing version of package(s) in repository `control_toolbox` to `1.10.4-2`:

- distro file: `hydro/distribution.yaml`
- bloom version: `0.5.9`
- previous version for package: `1.10.4-1`

## control_toolbox

```
* Added Travis support
* Renamed manifest.xml so it doesn't break rosdep
* Expanded range of PID and windup gains for certain applications.
* Expanded range of PID and windup gains for certain applications. Lowered default integral and derivative gain
* check for CATKIN_ENABLE_TESTING
* Add some comments to Parameters.cfg
* Add support for dynamic_reconfigure for rosbuild
* Contributors: Austin Hendrix, Dave Coleman, Lukas Bulwahn, Paul Dinh
```