make function with 5.008

Signed-off-by: Caleb Cushing <xenoterracide@gmail.com>
update copyright info

Signed-off-by: Caleb Cushing <xenoterracide@gmail.com>
1.03

	- update copyright info
	- require 5.8 (let me know if this is a problem for you)
	- improve tests
	- hopefully fix failing test on windows
	- improve code readability
	- remove DEBUG for private _is_debug method