Added test for comment failing

Signed-off-by: Andrew Miller <amiller@dappervision.com>

Added a simple validation of introducer furl

Signed-off-by: Andrew Miller <amiller@dappervision.com>

Improved regular expression

Signed-off-by: Andrew Miller <amiller@dappervision.com>

better parse

Signed-off-by: Andrew Miller <amiller@dappervision.com>