Click and DoubleClick events

What else:
-in view/home we have the listener for the click and dbclick
-deleted model/graph
-added view/paper because with paper.model we can access to the graph
Merge branch 'master' of https://github.com/piratework/ide

Conflicts:
	documents/requirements/Interaction/7—The_user_must_be_ able_to_jump_on_anoter_view_double_clicking_a_composite_model