rqt: 0.2.14-0 in 'groovy/distribution.yaml' [bloom]

Increasing version of package(s) in repository `rqt` to `0.2.14-0`:

- distro file: `groovy/distribution.yaml`
- bloom version: `0.5.1`
- previous version for package: `0.2.12-0`

## rqt_gui_cpp

```
* add ros spinner thread for cpp plugins (#95 <https://github.com/ros-visualization/rqt/issues/95>)
```

## rqt_gui

- No changes

## rqt_gui_py

- No changes