Py-trees

------------------
* [display] bugfix and use elipsis on ascii visited only display modes, `273 <https://github.com/splintered-reality/py_trees/pull/273>`_

------------------
* [display] option for only visited behaviours in text tree snapshot displays, `272 <https://github.com/splintered-reality/py_trees/pull/272>`_

------------------
* [behaviours] action client goals from blackboard behaviour, `148 <https://github.com/splintered-reality/py_trees_ros/pull/148>`_
* [behaviours] publish from blackboard behaviour, `146 <https://github.com/splintered-reality/py_trees_ros/pull/146>`_

------------------
* [display] enum agnostic display for local and remote activity view displays

------------------
* [display] optional show_title in unicode_blackboard_activity_stream

------------------
* [trees] revert to using user signals if available to avoid shenanigans with SIGINT, `264 <https://github.com/splintered-reality/py_trees/pull/264>`_
* [trees] play nicely, reset signal handlers after setup, `262 <https://github.com/splintered-reality/py_trees/pull/262>`_
* [visitors] bugfix the snapshot visitor to look for exclusive write keys as well