Improve parse_authority safety with match, replace unwrap.
Also, refactor code in contains("://") block using result from the
parse_authority to also use match.
https://github.com/hyperium/hyper/issues/1022
		
	
Improve parse_authority safety with match, replace unwrap.
Also, refactor code in contains("://") block using result from the
parse_authority to also use match.
https://github.com/hyperium/hyper/issues/1022