navigation: 1.11.9-0 in 'hydro/distribution.yaml' [bloom]

Increasing version of package(s) in repository `navigation` to `1.11.9-0`:

- distro file: `hydro/distribution.yaml`
- bloom version: `0.5.9`
- previous version for package: `1.11.8-0`

## amcl

- No changes

## base_local_planner

```
* uses ::hypot(x, y) instead of sqrt(x*x, y*y)
* No need to use limits->
* Contributors: Enrique Fernández Perdomo
```

## carrot_planner

- No changes

## clear_costmap_recovery

- No changes

## costmap_2d

```
* fix hypot issues, add comments to tests from tracking this down
* dynamically reconfigure the previously uninitialised variable 'combination_method', closes #187 <https://github.com/ros-planning/navigation/issues/187>.
* uses ::hypot(x, y) instead of sqrt(x*x, y*y)
* Contributors: Daniel Stonier, Michael Ferguson, Enrique Fernández Perdomo
```

## dwa_local_planner

- No changes

## fake_localization

- No changes

## global_planner

```
* uses ::hypot(x, y) instead of sqrt(x*x, y*y)
* Contributors: Enrique Fernández Perdomo
```

## map_server

- No changes

## move_base

```
* uses ::hypot(x, y) instead of sqrt(x*x, y*y)
* Contributors: Enrique Fernández Perdomo
```

## move_base_msgs

- No changes

## move_slow_and_clear

- No changes

## nav_core

- No changes

## navfn

```
* uses ::hypot(x, y) instead of sqrt(x*x, y*y)
* Contributors: Enrique Fernández Perdomo
```

## navigation

- No changes

## robot_pose_ekf

```
* fix robot_pose_ekf test
* Contributors: Michael Ferguson
```

## rotate_recovery

- No changes

## voxel_grid

- No changes