catkin: 0.6.11-0 in 'indigo/distribution.yaml' [bloom]

Increasing version of package(s) in repository `catkin` to `0.6.11-0`:

- upstream repository: git@github.com:ros/catkin.git
- release repository: https://github.com/ros-gbp/catkin-release.git
- distro file: `indigo/distribution.yaml`
- bloom version: `0.5.16`
- previous version for package: `0.6.10-0`

## catkin

```
* fix return code for tests run by ctest (#703 <https://github.com/ros/catkin/issues/703>)
```