Adjustments after merging 'dev-flo'

...n_ws/src/learn_environment/developer_docs/define_tasks.md

.../learn_environment/src/script_execution/script_worker.cpp

...n_scripts/move_it/move_it_basics/move_it_basics_1_eval.py

...n_scripts/move_it/move_it_basics/move_it_basics_2_eval.py

...n_scripts/move_it/move_it_basics/move_it_basics_4_eval.py

...scripts/move_it/move_it_objects/move_it_objects_1_eval.py

...scripts/move_it/move_it_objects/move_it_objects_2_eval.py

...scripts/move_it/move_it_objects/move_it_objects_3_eval.py

...ol/evaluation_scripts/ros/ros_basics/ros_basics_1_eval.py

...ol/evaluation_scripts/ros/ros_basics/ros_basics_2_eval.py

...ol/evaluation_scripts/ros/ros_basics/ros_basics_3_eval.py

...n_scripts/ros/ros_intermediate/ros_intermediate_1_eval.py

...n_scripts/ros/ros_intermediate/ros_intermediate_2_eval.py

...ion_scripts/move_it/move_it_basics/move_it_basics_4.ipynb

...n_scripts/move_it/move_it_objects/move_it_objects_3.ipynb

..._ws/src/learn_environment/task_pool/task_definitions.json