change ros python lib path environment in jupyter-tensorflow-ros-base

[jacknlliu]

In jupyter-tensorflow-ros-base image, we open the terminal, but we get the following errors:

    Traceback (most recent call last):
      File "/opt/ros/kinetic/lib/python2.7/dist-packages/tornado/websocket.py", line 369, in _run_callback
        callback(*args, **kwargs)
      File "/opt/conda/lib/python3.6/site-packages/notebook/base/zmqhandlers.py", line 171, in open
        return super(WebSocketMixin, self).open(*args, **kwargs)
      File "/opt/conda/lib/python3.6/site-packages/terminado/websocket.py", line 48, in open
        super(TermSocket, self).open(url_component)
    TypeError: open() takes 1 positional argument but 2 were given
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