Update README.md
Add `past_menu` for refreshing past and current menus only
Add documentation
Add class Item to LocoMenu
Disable ClassLength and MethodLength for now
Merge pull request #2 from yous/patch-locomenu

Improve LocoMenu
Update ReadME.md for RuboCop
Keep line length to 80
Indent comments
Exit when user inputs 'off' as id
Set default method of Item based on name
Add Welcome to menu