rovio: 0.2.1-0 in 'hydro/distribution.yaml' [bloom]

Increasing version of package(s) in repository `rovio` to `0.2.1-0`:

- distro file: `hydro/distribution.yaml`
- bloom version: `0.5.2`
- previous version for package: `null`

## rovio

```
* build errors fixed
* rovio_av catkinized
* rovio metapackage created
* Contributors: Russell Toris
```

## rovio_av

```
* launch bug fixed
* rovio_shared catkinized
* rovio_ctrl catkinized
* rovio_av catkinized
* initial import
* Contributors: Russell Toris
```

## rovio_ctrl

```
* launch bug fixed
* build errors fixed
* rovio_shared catkinized
* rovio_ctrl catkinized
* initial import
* Contributors: Russell Toris
```

## rovio_shared

```
* build errors fixed
* rovio_shared catkinized
* initial import
* Contributors: Russell Toris
```