Changes to be committed:
	new file:   module.m
        - handling of standard input as JSON and of input and output arguments of a module similar to the implementation in module.py
Changes to be committed:
	new file:   +module_m/get_handles.m
	new file:   +module_m/read_input_args.m
	new file:   +module_m/write_output_args.m
    - reorganization of the matlab code -> package containing individual functions
Changes to be committed:
	deleted:    module.m
    - now as package +module_m
Changes to be committed:
	new file:   illum_correct.jt
    - example Matlab module