ros_comm: 1.10.3-0 in 'hydro/distribution.yaml' [bloom]

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

- distro file: `hydro/distribution.yaml`
- bloom version: `0.5.9`
- previous version for package: `1.10.2-0`

## message_filters

- No changes

## ros_comm

- No changes

## rosbag

- No changes

## rosbag_storage

- No changes

## rosconsole

- No changes

## roscpp

```
* add AsyncSpinner::canStart() to check if a spinner can be started
```

## rosgraph

- No changes

## rosgraph_msgs

- No changes

## roslaunch

- No changes

## rosmaster

- No changes

## rosmsg

- No changes

## rosnode

- No changes

## rosout

- No changes

## rosparam

- No changes

## rospy

```
* improve asynchonous publishing performance (#373 <https://github.com/ros/ros_comm/issues/373>)
* allow custom error handlers for services (#375 <https://github.com/ros/ros_comm/issues/375>)
```

## rosservice

- No changes

## rostest

- No changes

## rostopic

- No changes

## roswtf

- No changes

## std_srvs

- No changes

## topic_tools

- No changes

## xmlrpcpp

```
* fix day comparison for rpc value of type timestamp (#395 <https://github.com/ros/ros_comm/issues/395>)
```