Changing celery worker logs to be daily rather than per-task

[york-stsci]

This does 2 things:

• It adds (to configure_logging() and make_log_file()) the option "include_time", which determines whether the log file will be made one-per-day or one-per-minute
• It sets the shared_tasks.py log creation to set include_time to False, so that all celery tasks run on the same server during the same day will be stored in the same file

Effectively this returns things to the status quo before celery was made into a service, and it makes sense because there's no reason to make a new file every single time a new calibration task arrives.