Py-trees

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* `Milestone - Polish & Release <https://github.com/splintered-reality/py_trees_js/milestone/5>`_

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* `Milestone - Interactive Event Timeline <https://github.com/splintered-reality/py_trees_js/milestone/4>`_

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* ``failure_is_running decorator`` (meta).

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* [code] Fixed Namespace switching error (`35 <https://github.com/splintered-reality/py_trees_ros_viewer/issues/35>`_)
* [code] Update deprecated QoS settings (`34 <https://github.com/splintered-reality/py_trees_ros_viewer/issues/34>`_)
* [infra] resolve chrome 80+ incompatibility (`32 <https://github.com/splintered-reality/py_trees_ros_viewer/issues/32>`_)
* Contributors: Daniel Stonier, Sebastian Castro, J Keshav Bhupathy Vignesh

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* [backend] capture paralell policy details

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* [docs] using ros2 launch, not ros2 run for the tutorials