* fixed issue 1179

* updated bringup readme, added links to external documentation, tutorials, and the nav2 slam documentation, renamed the nav2 with slam documentation

*  removed warnings

* minor edits

* Instead of copying icons, reference them in origin package.

* Remove icon install step as well.

Handle map message even if there is no initial pose

* Add non doc directory files

* Add template.

Wait recovery

Adding functionality to launch a separate rviz instance per robot.

Use ament index to resolve rosdep install

Fix underlay parameter for install_overlay_dependencies

sleep for 50ms

Nav2 recovery server

prevent dwb controller from missing changes to the global path (#1160)

Fixed documentation typo.

Changed "GlobalPlanner" to "Recovery" in file recovery.hpp

uncrustifying

* Extending `rewritten_yaml` to also replace keys.

* Adding a node launcher that puts a condition to
applying the remappings.

* Add namespacing of launch files.

* Update namespace of costmap and passing of correct
namespace by planner & controller.

Moving original files to bringup folder
Adding node for spawning TB3's into Gazebo

fix logic