Quality Assurance (QA): Test our release packages. Install them from scratch, try updates from previous versions, make sure everything is working, check if the upgrader works along the different (Repo)-Versions.
add debug output to DEBUG file and popup-window in browser
to highlight the debug output in the console add '[BLUE|GOLD|ORANGE|RED]' as the first argument
e.g. Diag::dbg('GOLD', $parameter);
In both cases it writes the $parameter to the log in the main directory wacko/DEBUG when the config debug is enabled.
Be aware the log isn't emptied automatically. Ensure that the file wacko/DEBUG can be created and is writable.