Release for YARP3

This release is a maintenance release and ensures compatibility with YARP 3.0.

Release for Zenodo

Trigger new release so we get a DOI for the repository.

Version submitted to Frontiers in Robotics & AI

This tags the state on 31 May 2017, the day of submitting the paper to the "Building the iCub Mindware" special issue in the Frontiers in Robotics & AI.