- replace deprecated ad_permission_p with permission::permission_p
- replace deprecated "ad_require_permission" by "permission::require_permission"
- replace deprecated "ad_parameter" by "parameter::get"
- relplace deprecated "item::get_live_revision" by "content::item::get_live_revision"
- replace deprecated "ad_parameter" by "parameter::get"
- modernize tcl
- bump version numbers