This RuntimeLoggerSingleton provides a RuntimeLogger
singleton configured by a "runtimelogger-config.xml" file find
in one of the several locations relative to your application's base
directory: The applications base directory (where your JAR or your classes
reside) is taken and a list of directories (as defined in the
Folders.CONFIG_DIRS) relative to this base directory is generated :
The actual directories being looked at (in case them exist) are as follows,
relative to your applications base directory: