026ac24922
F8 key enabled again, useful for script UI development. - keying set freeing wasnt freeing from all scenes and the builtin list. - PointerProperty() cant refer to a removed python srna type (fixed in rigify and netrender). - Added a check for freeing a type used by a PointerProperty but its very slow, makes reloading take ~10sec. Only enabled this in debug mode for now. Netrender register() function isnt re-registering the property, probably because the module is cached by python and not re-run.