This provides a number of cleanups as the code has been unloved for a while.
I've added the ssl-* parameters the robinbowes added in his last patch to the
docs, and found some other cleanups as well where applicable.
I've added the ability to override the test_url also, so that in the future
if a user wishes to they can customize this.
Signed-off-by: Ken Barber <ken@bob.sh>