add missing sudo and handle arguments

Add regress for httpd client certificate authentication.

From Jack Burton <jack at saosce dot com dot au> - thanks!

Fix TLS tests. Keys and log files are now in obj, not in obj/htdocs

Add httpd regression tests based on bluhm's regression suite for
relayd - "bluhm test". This is just the initial version, more tests
and changes will be done.

As discussed with bluhm@ florian@