Added initial folder structure
Added package abb to supplements
added manipulation_lab stack
create training dir to support 'exercises'
whoops.  Forgot to delete old 'supplements' dir
added turtlebot_arm stack that contains the checkerboard calibration node
moved 'manipulation_lab' to the 'training/orig' directory and renamed it 'demo_manipulation'
added ccny_vision stack for ar tag detection
moving perception _lab into the training/orig directory
add files for Exercise 3.3
add files for exercise 3.4
added package that contains the node for carrying out pick and place task
added moveit generated package for the ur5 arm in the actual workcell
removed includes of warehouse and rviz
replace includes of robot_state_publisher, joint_state_publisher and moveit launch files for the moveit_planning and execution launch file for running the real or simulated robot
minor comment changes
added package for io operations
corrected references to old header files
added simulated grasp action service node
added configuration files for ur5 pick and place