[shell] #715938: support of script parameters (using standard '--' as arguments separator)
Arguments after bare "--" string will not be processed by the shell command
You can use it to pass extra arguments to your script and expect for
them in 'scriptargs' afterwards.
# 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')