Added options parameter to perform_actions when you specify a directory

If you specify a directory as an argument this exception was thrown:

/Users/scott/bin/tagbak:338:in `perform_action': wrong number of arguments (2 for 3) (ArgumentError)
	from /Users/scott/bin/tagbak:410:in `block in <main>'
	from /Users/scott/bin/tagbak:406:in `each'
	from /Users/scott/bin/tagbak:406:in `<main>'