Improves the Docker installation script. (#43)
Improves the Docker installation script. (#43)

- Builds with Ninja.
- Catkin workspace cleaned up after installation.
- Runs all tests, including those from cartographer.
memorysafe/cartographer_ros,wohe/cartographer_ros,googlecartographer/cartographer_ros,memorysafe/cartographer_ros,damonkohler/cartographer_ros,af-silva/cartographer_ros,cartographer-project/cartographer_ros,af-silva/cartographer_ros,memorysafe/cartographer_ros,googlecartographer/cartographer_ros,cartographer-project/cartographer_ros,damonkohler/cartographer_ros,wohe/cartographer_ros,af-silva/cartographer_ros,googlecartographer/cartographer_ros,cartographer-project/cartographer_ros,damonkohler/cartographer_ros,wohe/cartographer_ros