added logging framework with file based configuration to server_x11.  both console and file based logging are supported.  file logging is disabled by default.  old config file formats supported - server will not error due to missing config vaules.
removed old dictConfig logging configuration code
gracefully handle missing logger configuration file.
got rid of an extra config file in favor of a dict config.  made console logging the default.  fixed flake8 suggestions
removed unused logging.config.example
Tweak logging to be a bit quieter by default.