ros_comm: 1.10.12-0 in 'hydro/distribution.yaml' [bloom]

Increasing version of package(s) in repository `ros_comm` to `1.10.12-0`:

- upstream repository: git@github.com:ros/ros_comm.git
- release repository: https://github.com/ros-gbp/ros_comm-release.git
- distro file: `hydro/distribution.yaml`
- bloom version: `0.5.16`
- previous version for package: `1.10.11-0`

## message_filters

- No changes

## ros_comm

- No changes

## rosbag

```
* fix delay on detecting a running rosmaster with use_sim_time set (#532 <https://github.com/ros/ros_comm/pull/532>)
```

## rosbag_storage

- No changes

## rosconsole

- No changes

## roscpp

- No changes

## rosgraph

- No changes

## rosgraph_msgs

- No changes

## roslaunch

- No changes

## rosmaster

```
* fix closing sockets properly on node shutdown (#495 <https://github.com/ros/ros_comm/issues/495>)
```

## rosmsg

- No changes

## rosnode

- No changes

## rosout

- No changes

## rosparam

- No changes

## rospy

```
* fix infinitely retrying subscriber (#533 <https://github.com/ros/ros_comm/issues/533>)
```

## rosservice

- No changes

## rostest

- No changes

## rostopic

- No changes

## roswtf

- No changes

## std_srvs

- No changes

## topic_tools

- No changes

## xmlrpcpp

- No changes