escape path delimiter in script name

[miksir]

If we will try to create script with path in name, like '/usr/bash' - the script config file will be created by absolute path /usr/bash.json

It's happens because slash wasnt escaped and path = os.path.join(self._script_configs_folder, _script_name_to_file_name(name)) will not use self._script_configs_folder if second parameter - absolute path

[bugy]

Nice, thanks!