[cleanup] Revert problematic change in UndoRedoCapableEMFCommandFactory.setAutoRefreshDView()

Change-Id: I7a4800542251ec533a829e50281a56fb6fa74994
Signed-off-by: Pierre-Charles David <pierre-charles.david@obeo.fr>
[424662] modify the CrossTableDescriptionItemProvider to create default
variables when creating a new CreateCrossColumnTool

Change-Id: Ie8fdc9b7707ff09305eacd85ad31dc800618448c
Signed-off-by: Alex Lagarde <alex.lagarde@obeo.fr>