XStudio 1.2: GUI for the execution options

One of the latest features I added was the possibility to reorder the tests by dependency. One thing was missing though: the logic to apply in case one parent test has failed or has not been executed (even if you did not ordered you tests by dependencies, you may want to take advantage of this information).

This is done now through this GUI (available in "create a session", "copy a session" and "create a schedule" operations):