DeprecationWarning for node.properties

[echowhisky]

In 2ca1abc when you updated the scripts/vis.py file, on Line 95 and Line 97 you still used node.properties.

When I run this in Py3.5 I get a DeprecationWarning that says this should be replaced with dict(node).

I've tried this locally and simply replacing one with the other seems to work fine with no negative impact on your code.

Great update, though. Your code example has been very useful in helping me understand py2neo better and I really like the in-notebook Javascript visualizations.