Fix #14 - Leading Zeroes issue solved. Will further update soon.
+ Leading zeroes are automatically inherrited from a switch like 09->08.
+ However, if a digit boundary is crossed (i.e. 100->99, or 1000->999, etc.),
the script requires user input on the decision to pad the number with 0s.
  + This input is either given by a checkbox in the popup, or via a confirm
message if the popup is not used (i.e. issue stems from a keyboard shortcut
command).
+ Next feature is to have a "default" action setting in the options page.
  + Popup checkbox will assume this default setting's value on startup
  + Keyboard shortcuts will reference this option every time they're used