rosbridge_suite: 0.6.2-0 in 'hydro/distribution.yaml' [bloom]

Increasing version of package(s) in repository `rosbridge_suite` to `0.6.2-0`:

- upstream repository: https://github.com/RobotWebTools/rosbridge_suite
- release repository: https://github.com/RobotWebTools-release/rosbridge_suite-release.git
- distro file: `hydro/distribution.yaml`
- bloom version: `0.5.12`
- previous version for package: `0.6.0-0`

## rosapi

- No changes

## rosbridge_library

```
* Remove unused json imports; move json imports to utility
  Fixes #7
* Contributors: Graeme Yeates
```

## rosbridge_server

```
* Merge pull request #125 from megawac/json
  Remove unused imports; move json imports to utility
* override to enable support for allowing alternate origins
  To accept all cross-origin traffic (which was the default prior to Tornado 4.0), simply override this method to always return true.
* import backports.ssl_match_hostname 3.4.0.2
* upgrade tornado to 4.0.2
* Remove unused json imports; move json imports to utility
  Fixes #7
* Contributors: Graeme Yeates, Ramon Wijnands, Russell Toris
```

## rosbridge_suite

- No changes