Renamed EditorTest attributes (remove mock prefix)
Class to launch the Editor with no GUI
EditorGUITest as base to test the editor GUI
Names for some buttons
Action to open a mock game with test purposes
Cut Copy Test (reproducing the bug)
Bugfix iterarting selection
To avoid nested iterations, selection should be iterated
using SnapshotArray utils
Merge pull request #653 from anserran/cutfix

Infrastructure to automatically test the Editor GUI (without actually launching the GUI)