navigation: 1.11.8-0 in 'hydro/distribution.yaml' [bloom]

Increasing version of package(s) in repository `navigation` to `1.11.8-0`:

- distro file: `hydro/distribution.yaml`
- bloom version: `0.5.8`
- previous version for package: `1.11.7-0`

## amcl

- No changes

## base_local_planner

- No changes

## carrot_planner

- No changes

## clear_costmap_recovery

- No changes

## costmap_2d

- No changes

## dwa_local_planner

- No changes

## fake_localization

- No changes

## global_planner

- No changes

## map_server

```
* fix build, was broken by #175 <https://github.com/ros-planning/navigation/issues/175>
* Contributors: Michael Ferguson
```

## move_base

- No changes

## move_base_msgs

- No changes

## move_slow_and_clear

- No changes

## nav_core

- No changes

## navfn

- No changes

## navigation

- No changes

## robot_pose_ekf

```
* fix build, was broken by #175 <https://github.com/ros-planning/navigation/issues/175>
* Contributors: Michael Ferguson
```

## rotate_recovery

- No changes

## voxel_grid

- No changes