Immediate log messages of resque workers

The following description and code example was tested with the following gem spec:

rails (3.2.11)
resque (1.24.1)
resque-scheduler (2.0.1)

Since the default Resque.logger does not immediately flush all log messages to the log file, we want to use our own logger instance and a separate log file. All we have to do are the following steps: