rtmros_common: 1.2.4-1 in 'hydro/distribution.yaml' [bloom]

Increasing version of package(s) in repository `rtmros_common` to `1.2.4-1`:

- upstream repository: https://github.com/start-jsk/rtmros_common.git
- release repository: https://github.com/tork-a/rtmros_common-release.git
- distro file: `hydro/distribution.yaml`
- bloom version: `0.5.11`
- previous version for package: `1.2.3-0`

## hrpsys_ros_bridge

```
* (test/test-pa10.test) support GUI argument
* (test/test-pa10.py)   add test for /command
* (hrpsys_ros_bridge/src/HrpsysJointTrajectoryBridge.cpp) support <controller>/command, see #537
* (README.md) fix document, based on snozawa's comment
* Contributors: Kei Okada
```

## hrpsys_tools

- No changes

## openrtm_ros_bridge

- No changes

## openrtm_tools

- No changes

## rosnode_rtc

- No changes

## rtmbuild

- No changes

## rtmros_common

- No changes