Updated the ubuntu 16 installation shell script

dfall_ws/src/dfall_pkg/launch/Config.sh

 # TO RUN THE SYSTEM FULLY ON THE LOCAL COMPUTER:
 #export ROS_MASTER_URI=http://localhost:11311
 # TO RUN THE SYSTEM ON A DEFAULT CONFIGURATION OF THE NETWROK:
-export ROS_MASTER_URI=http://teacher:11311
+export ROS_MASTER_URI=http://dfallmaster:11311
 # OTHER NECESSARY ENVIRONMENT VARIABLES:
 export ROS_IP=$(hostname -I | awk '{print $1;}')
 export DFALL_DEFAULT_AGENT_ID=$(cat /etc/dfall_default_agent_id)

install/dfall_install_ros_kinetic_ubuntu16.sh

 #!/bin/bash
 
+# --------------------------------------------------------------- #
+# USAGE:
+# 1) Download this installation shell script file
+# 2) Modify the file permission to be executable
+#    >> chmod +x dfall_install_ros_melodic_ubuntu16.sh
+# 3) Execute the script
+#    >> ./dfall_install_ros_melodic_ubuntu16.sh <agentID>
+#    where <agentID> is replaced by a number, eg. 1
+
+
+
+# --------------------------------------------------------------- #
+# PROCESS THE INPUT ARGUMENTS
+
 die () {
     echo >&2 "$@"
     exit 1
@@ -9,26 +23,73 @@ die () {
 [ "$#" -eq 1 ] || die "1 argument required (AgentID), $# provided"
 echo $1 | grep -E -q '^[0-9]+$' || die "Numeric argument required, $1 provided"
 
-# Ensure the ROS repository is available
+
+
+# --------------------------------------------------------------- #
+# INSTALL ROS AS PER:
+# http://wiki.ros.org/melodic/Installation/Ubuntu
+
+# Setup the computer to accept software from packages.ros.org
 sudo sh -c 'echo "deb http://packages.ros.org/ros/ubuntu $(lsb_release -sc) main" > /etc/apt/sources.list.d/ros-latest.list'
+
+# Setup the keys
 sudo apt-key adv --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-key 421C365BD9FF1F717815A3895523BAEEB01FA116
 
-# Update the list of programs
+# Update the package index, i.e., the list of programs
 sudo apt-get update
+
 # Install all available upgrades
 # > Note: the -y option means Automatic yes to prompts
 sudo apt-get -y upgrade
+
 # Install ROS Kinetic
+# > Note: we use the configuration: "Desktop-Full Install: (Recommended)"
 sudo apt-get -y install ros-kinetic-desktop-full
+
+# Initialise and update rosdep
+# > Note: rosdep enables you to easily install system dependencies for source you want to compile and is required to run some core components in ROS
+sudo rosdep init
+rosdep update
+
+# Add the ROS environment setup to the .bashrc
+echo "source /opt/ros/kinetic/setup.bash" >> ~/.bashrc
+# Run it now so that it is valid for this terminal session
+source /opt/ros/kinetic/setup.bash
+
+
+
+# --------------------------------------------------------------- #
+# INSTALL THE PYTHON USB PACKAGE
+# > Note: this is needed to connected to the Crazyradio USB dongle
+
 # Install the python package management system "python-pip"
 sudo apt-get -y install python-pip
+
 # Install the python USB package "pyusb"
-# > Note: this is needed to connected to the Crazyradio USB dongle
 sudo pip install pyusb
 
-# Initialise and update the ROS dependencies
-sudo rosdep init
-rosdep update
+
+
+# --------------------------------------------------------------- #
+# INSTALL THE NECESSARY Qt5 PACKAGES AND CREATOR
+# > NOTE: Qt is required for the GUIs, and the dfall ROS package
+#         requires Qt for compilation
+
+# Install the default Qt5
+sudo apt -y install qt5-default
+
+# Install the development version of the Qt5svg library
+sudo apt -y install libqt5svg5-dev
+
+# Install the "Qt Creator" IDE
+# > NOTE: this is not necessary to compile and run the dfall ROS package,
+#         but it is required to edit the GUIs
+sudo apt -y install qtcreator
+
+
+
+# --------------------------------------------------------------- #
+# CLONE THE D-FaLL-System REPOSITORY
 
 # Make the "work" directory under the users root
 # > Note: the -p option means: no error if existing, make parent directories as needed
@@ -38,16 +99,19 @@ cd ~/work
 # Clone the D-FaLL-System git repository
 git clone https://gitlab.ethz.ch/D-FaLL/PandS-System/D-FaLL-System.git
 
-# Add the ROS environment setup to the .bashrc
-echo "source /opt/ros/kinetic/setup.bash" >> ~/.bashrc
-# Run it now so that it is valid for this terminal session
-source /opt/ros/kinetic/setup.bash
+
+
+# --------------------------------------------------------------- #
+# CREATE, COPY, EDIT A FEW NECESSARY FILES
+# > NOTE: the "man sh" explain that the -c option specifies "sh" to:
+#         "Read commands from the command_string operand instead of from the standard input.
 
 # Add the teacher's IP address to the /etc/hosts file
-sudo sh -c "echo '10.42.0.10 teacher' >> /etc/hosts"
+sudo sh -c "echo '10.42.0.10 dfallmaster' >> /etc/hosts"
 
 # Add a new file with the default agent ID
 sudo sh -c "echo $1 >> /etc/dfall_default_agent_id"
+
 # Add a new file with the default coordinator ID
 sudo sh -c "echo 1 >> /etc/dfall_default_coord_id"
 
@@ -55,15 +119,30 @@ sudo sh -c "echo 1 >> /etc/dfall_default_coord_id"
 sudo cp ~/work/D-FaLL-System/install/99-crazyflie.rules /etc/udev/rules.d
 sudo cp ~/work/D-FaLL-System/install/99-crazyradio.rules /etc/udev/rules.d
 
-# Build the D-FaLL ROS Package, called dfall_pkg
-# > This is done by calling "catkin_make" from the dfall_ws workspace
+
+
+# --------------------------------------------------------------- #
+# BUILD THE D-FaLL-System ROS PACKAGE
+# > NOTE: This is done by calling "catkin_make" from the folder "dfall_ws",
+#         where "ws" stands for workspace
+# > NOTE: the package that is built is named "dfall_pkg", as specified in the file
+#         .../dfall_ws/src/dfall_pkg/package.xml
+# > NOTE: the -j4 option specifies the: Maximum number of build jobs to be
+#         distributed across active packages. (default is cpu count)
 cd ~/work/D-FaLL-System/dfall_ws
 catkin_make -j4
 
+
+
+# --------------------------------------------------------------- #
+# ADD TO THE .bashrc THE D-FaLL-System CONFIG AND ROS PACKAGE SETUP
+
 # Add the D-FaLL ROS Package setup to the .bashrc
 echo "source ~/work/D-FaLL-System/dfall_ws/devel/setup.bash" >> ~/.bashrc
+# And run it now so that it is valid for this terminal session
 source ~/work/D-FaLL-System/dfall_ws/devel/setup.bash
 
 # Add the "Config.sh" shell script to the .bashrc
 echo "source ~/work/D-FaLL-System/dfall_ws/src/dfall_pkg/launch/Config.sh" >> ~/.bashrc
-source ~/work/D-FaLL-System/dfall_ws/src/dfall_pkg/launch/Config.sh
+# And run it now so that it is valid for this terminal session
+source ~/work/D-FaLL-System/dfall_ws/src/dfall_pkg/launch/Config.sh
\ No newline at end of file

install/dfall_install_ros_melodic_ubuntu18.sh

 #!/bin/bash
 
+# --------------------------------------------------------------- #
+# USAGE:
+# 1) Download this installation shell script file
+# 2) Modify the file permission to be executable
+#    >> chmod +x dfall_install_ros_melodic_ubuntu16.sh
+# 3) Execute the script
+#    >> ./dfall_install_ros_melodic_ubuntu16.sh <agentID>
+#    where <agentID> is replaced by a number, eg. 1
+
+
+
+# --------------------------------------------------------------- #
+# PROCESS THE INPUT ARGUMENTS
+
 die () {
     echo >&2 "$@"
     exit 1
@@ -50,6 +64,7 @@ source /opt/ros/melodic/setup.bash
 
 # Install the python package management system "python-pip"
 sudo apt -y install python-pip
+
 # Install the python USB package "pyusb"
 sudo pip install pyusb
 
@@ -71,6 +86,8 @@ sudo apt -y install libqt5svg5-dev
 #         but it is required to edit the GUIs
 sudo apt -y install qtcreator
 
+
+
 # --------------------------------------------------------------- #
 # CLONE THE D-FaLL-System REPOSITORY
 
@@ -94,6 +111,7 @@ sudo sh -c "echo '10.42.0.10 dfallmaster' >> /etc/hosts"
 
 # Add a new file with the default agent ID
 sudo sh -c "echo $1 >> /etc/dfall_default_agent_id"
+
 # Add a new file with the default coordinator ID
 sudo sh -c "echo 1 >> /etc/dfall_default_coord_id"