Merge remote-tracking branch 'origin/master' into feature/human-robot-mapping

SimoxUtility/color/json.cpp

SimoxUtility/xml/rapidxml/rapidxml_print.hpp

VirtualRobot/CMakeLists.txt

VirtualRobot/MathTools.cpp

VirtualRobot/Nodes/HemisphereJoint/Expressions.cpp

VirtualRobot/Nodes/HemisphereJoint/Expressions.h

VirtualRobot/Nodes/HemisphereJoint/Joint.cpp

VirtualRobot/Nodes/HemisphereJoint/Joint.h

VirtualRobot/Nodes/RobotNode.cpp

VirtualRobot/Nodes/RobotNode.h

VirtualRobot/Nodes/RobotNodeFactory.h

VirtualRobot/Nodes/RobotNodeHemisphere.cpp

VirtualRobot/Nodes/RobotNodeHemisphere.h

VirtualRobot/Nodes/RobotNodeHemisphereFactory.cpp

VirtualRobot/Nodes/RobotNodeHemisphereFactory.h

VirtualRobot/Nodes/RobotNodeRevolute.h

VirtualRobot/Robot.cpp

VirtualRobot/Robot.h

VirtualRobot/Visualization/TriMeshUtils.h

VirtualRobot/XML/RobotIO.cpp