ros_comm_msgs: 1.10.3-0 in 'indigo/distribution.yaml' [bloom]

Increasing version of package(s) in repository `ros_comm_msgs` to `1.10.3-0`:

- upstream repository: https://github.com/ros/ros_comm_msgs.git
- release repository: https://github.com/ros-gbp/ros_comm_msgs-release.git
- distro file: `indigo/distribution.yaml`
- bloom version: `0.5.11`
- previous version for package: `1.10.2-0`

## rosgraph_msgs

```
* add delivered_msgs attribute to TopicStatistics message (#2 <https://github.com/ros/ros_comm_msgs/pull/2>)
```

## std_srvs

- No changes