LDEV-2265 fixed openLearner() by introducing new method openLearnerShortenedUrl() designed particularly for opening learner window from shortened URLs like /lams/r/*
LDEV-3382 Add datetime parameter check to LoginRequest. It must check for "a range" of TTL that is datetime parameter provided can't be too far in the future as well
LDEV-3335: Set session cookie path and domain in TestHarness. Without it, and with session fixation attack prevention on, WildFly does not accept the cookie during authentication.