genmsg: 0.5.0-0 in 'indigo/distribution.yaml' [bloom]

Increasing version of package(s) in repository `genmsg` to `0.5.0-0`:

- distro file: `indigo/distribution.yaml`
- bloom version: `0.5.1`
- previous version for package: `0.4.24-0`

## genmsg

```
* remove usage of debug_message() (fix #40 <https://github.com/ros/genmsg/issues/40>)
```