Removed cookbook ``netlog.py``.
Added ``add_counted_option``. Not tested.
Added ``add_counted_option`` to example. Simple.
Abstracted option name functs. WS replaced by ``_``.
Fixed ``add_argument`` issue. Options were not working.
Removed inappropriate ``type`` kwarg from counted options.
Modified example to showcase ``add_counted_option``
All app args are list. Restricted option choices in help.
Added copyright string to epilog.
Minor mods to example.
Added ``add_restricted_argument``. Fixed restr. option.