18.05 RAVEN_II release

The latest in usability and feature improvements are finally ready for broad sharing! This release marks the first github pull from a non-UW community member - Kim at Southern Denmark University provided a well constructed set of patches to migrate to the ROS catkin compiler (Thanks Kim!). Primary among feature updates include an optional third USB board for joint encoder reading (currently deployed at UVA and QUT, the newest RAVEN sites). Further, new tools are available at the UW-biorobotics github repository for simulation, automation, and debugging.