List of unique users

src/freedombone-image-customise

     # Produce a text file on the desktop listing users on the mesh
     cat <<EOF > $rootdir/usr/bin/list-tox-users
 #!/bin/bash
-users_list=\$(lstox | awk -F ' ' '{\$1=""; print \$0}' | sed -e 's/^[[:space:]]*//' | sort -d)
+users_list=\$(lstox | awk -F ' ' '{\$1=""; print \$0}' | sed -e 's/^[[:space:]]*//' | sort -d | uniq)
 if [ ! \$users_list ]; then
     no_of_users=0
 else