"software/unstable/dotclear" did not exist on "master"
rapid-cdn: Fix re6st-verification-url testing
* the default is already tested so drop TestRe6stVerificationUrlDefaultSlave * use locally provided URL to check re6st-verification-url, to not depend on external resources slapos!1501 did a good job with making default disabled, but during the code review tests changes were not well checked.