genmsg: 0.5.2-0 in 'indigo/distribution.yaml' [bloom]

Increasing version of package(s) in repository `genmsg` to `0.5.2-0`:

- distro file: `indigo/distribution.yaml`
- bloom version: `0.5.5`
- previous version for package: `0.5.1-0`

## genmsg

```
* refactor to generate pkg-msg-paths.cmake via configure_file() instead of empy (#43 <https://github.com/ros/genmsg/issues/43>)
* fix python 3 compatibility (#45 <https://github.com/ros/genmsg/issues/45>)
* remove debug message introduced in 0.5.1 (#42 <https://github.com/ros/genmsg/issues/42>)
```