Major Description
From the intro:
"Last but not least, please shutdown all loggers, appenders and whatever with:
LoggerManager::shutdown();"
I guess closing open files should be handled in __desctruct().
(I did not check how e.g. file appenders are implemented but it should be considered to flush them after writing or
at least offer some kind of "synchronized" mode because if an application crashes, the very last message should not
be lost just because PHP did not yet run the __destruct()).