master
reorder input data in lab about arrays to prevent problem with java solutions add trivial tasks to print elements of array
split array lab to two smaller labs
multiple minor fixes
add task for barcode checksum and tasks about arrays. Add git hash to tasks footer
move task 5014 to coded tasks improve wording of task 5951, 7621, 8696 finalized css for streaming layout. started a class to handle multiple outputs per single input in streaming