[treeview] ensure items are ordered according to their dc_title, we can't rely on an ordered rset
* is_last has to be computed on the caller now, not possible in the callee
* rely on b3f61c38526b to use entity.view() with vid in *view*'s arguments
# type attribute might already be there if migrating from
# version < 3.5 to version >= 3.5.3, BaseTransition being added
# in bootstrap_migration
if versions_map['cubicweb'][0] >= (3, 5, 0):
add_attribute('BaseTransition', 'type')
sync_schema_props_perms('state_of')
sync_schema_props_perms('transition_of')