ERP5Type: make isDeletable using keyword arguments instead of arguments

This allows to have a nice default behavior for isDeletable without
the need to bother which arguments we can pass.

Also, make isDeletable of simulation movement supporting keyword arguments
to avoid failures when generic action checking isDeletable is called

product/ERP5/Document/SimulationMovement.py

@@ -354,7 +354,7 @@ class SimulationMovement(PropertyRecordableMixin, Movement, ExplainableMixin):
 
   security.declareProtected( Permissions.AccessContentsInformation,
                              'isDeletable')
-  def isDeletable(self):
+  def isDeletable(self, **kw):
     return not self.isFrozen() and not self._isTreeDelivered()
 
   # Simulation Dates - acquire target dates

product/ERP5Type/Base.py

@@ -2686,7 +2686,7 @@ class Base( CopyContainer,
 
   security.declareProtected(Permissions.AccessContentsInformation,
                             'isDeletable')
-  def isDeletable(self, check_relation):
+  def isDeletable(self, check_relation=True):
     """Test if object can be delete"""
     container = self.getParentValue()
     portal = container.getPortalObject()