adds a working version of translation for exercise
adds a working version of translation for exercise

fugufisch/hu_bp_python_course,WeirdCircumstances/hu_bp_python_course,tbphu/fachkurs_master_2016,brunnerp/PythonFachkurs,fugufisch/hu_bp_python_course,WeirdCircumstances/hu_bp_python_course,tbphu/fachkurs_master_2016,brunnerp/PythonFachkurs