config_default.debug_level is initialised to 1
mkws_config.debug_level may be set by the application
mkws.debug_level is set from one of the above
mkws.debug_time is self-contained, and used well
mkws.debug_function is a function
var debug is a local alias of mkws.debug_function
debug2 is a function that calls debug after 500 ms -- what?!