Added include director for training unit 2.3
Merge branch 'hydro-devel' of https://github.com/ros-industrial/industrial_training into hydro-devel
Corrected problem with sia5 launch file in 2.5
Removed sia20d from exercise 2.5.  Tool orientation in hydro no longer allows for easy tool switching
Changed default robot to irb2400 for unit 2.6
Switched to irb2400 for unit 2.7
Changed robot to IRB2400 for training unit 2.9
Merge branch 'hydro-devel' of https://github.com/ros-industrial/industrial_training into hydro-devel