Log file rotation

Have all log files rotated by default.
And then give the user the ability to change the rotation.

There should never be a file that can grow unlimited by default. This should be true for automated backups as well.

This is supposed to be the default but it slipped by when we upgraded JSW in the 7.2 release process. We have corrected this and new installations of 7.2.3 and later will not grow unbounded.