clean up global variable names for Jquery, React, i18n but also keep the references for reuse when loading another exercise
clean up global variable names for Jquery, React, i18n but also keep the references for reuse when loading another exercise

66eli77/kolibri-exercise-perseus-plugin,learningequality/kolibri-exercise-perseus-plugin,christianmemije/kolibri-exercise-perseus-plugin,66eli77/kolibri-exercise-perseus-plugin,christianmemije/kolibri-exercise-perseus-plugin,learningequality/kolibri-exercise-perseus-plugin,66eli77/kolibri-exercise-perseus-plugin,christianmemije/kolibri-exercise-perseus-plugin