A class that describes the base type for all scripts within an application.
scriptID (required) is a unique string identifier for the script.
cmd (required) is the command that is used to start the script.
logFile is the file for appended stdout/stderr output. It defaults to $ENDECA_CONF/logs/script/(app_id).(script_id).log.
workingDir is the working directory. It defaults to $ENDECA_CONF/working/(app_id)/.
