backend, pgsql: new `overwrite_policy` node setting: /!\ pgsql schema needs to be updated /!\ this settings can be set currently to 2 values: - `original_publisher` (default), when only original publisher of an item can overwrite it (except node owner/admin) - `any_publisher` when any entity with publishing right can overwrite any item.

syntax: glob
*.pyc
*.pyv
*.swp
*.swo
tags
twistd.log
twistd.pid
bridge_constructor/generated
_trial_temp/
sat.egg-info
*.un~
dist
MANIFEST
build