A logging decorator, that will log if function was unsucesful

[NegaScout]

based on internal decorator variable, decide if function was a succes, and if not, the reason for failing

def log( fun, *args, **kwargs):
  succes = True
  log_on_succes = False
  description = 'Default description'
  log_level = 'info'
  ret = fun(*args, **kwargs)
  if not succes:
     self.logger.log(description)
  elif succes and log_on_succes:
    self.logger.log(description)
  return ret

[NegaScout]

Implemented draft in fbbe4eb, not fully tested.