Add node tests to Travis config for #262.
Add node tests to Travis config for #262.

donkirkby/live-py-plugin,brandm/live-py-plugin,donkirkby/live-py-plugin,donkirkby/live-py-plugin,brandm/live-py-plugin,brandm/live-py-plugin,brandm/live-py-plugin,donkirkby/live-py-plugin,brandm/live-py-plugin,donkirkby/live-py-plugin