Trying to install ActionML's PredictionIO and Universal Recommender

I'm trying to install ActionML's PredictionIO and the Universal Recommender. The documentation at http://www.actionml.com/docs/ur_quickstart says I should run ./examples/integration-test . I strictly followed the quick install PIO steps. That fails with message

./examples/integration-test: line 35: pio: command not found

That's because the PredictionIO installer doesn't put pio in the path. I added pio to the path inside integration-test for now.