partial backport of support for adbh's new interface to backup_command and restore_command
these methods can return lists or strings which are passed to subprocess.call
without or with the shell=True parameter respectively.
sync_schema_props_perms('state_of')
sync_schema_props_perms('transition_of')
for etype in ('State', 'BaseTransition', 'Transition', 'WorkflowTransition'):
sync_schema_props_perms((etype, 'name', 'String'))