moveit_commander: 0.5.5-0 in 'hydro/distribution.yaml' [bloom]

Increasing version of package(s) in repository `moveit_commander` to `0.5.5-0`:

- distro file: `hydro/distribution.yaml`
- bloom version: `0.5.1`
- previous version for package: `0.5.4-0`

## moveit_commander

```
* adding get for active joints
* Contributors: Acorn, Sachin Chitta
```