Add the default logger if default_logging is true.
If the configuration variable is present, it will override the current
default_logging value. If the value does not exist in the config file,
the value set in the ctor will be used.
Note that the logger is explicitly set to output all levels, to avoid
the situation where the root logger is configured to not output level
'info'.
Add the default logger if default_logging is true.
If the configuration variable is present, it will override the current default_logging value. If the value does not exist in the config file, the value set in the ctor will be used.
Note that the logger is explicitly set to output all levels, to avoid the situation where the root logger is configured to not output level 'info'.