Beginning of adjustments to how number of runners and runner ids are set in task instance state. Removing them from the ctor, they need not be known by the code that sets up the task. This will temporarily break tests.
Beginning of adjustments to how number of runners and runner ids are set in task instance state. Removing them from the ctor, they need not be known by the code that sets up the task. This will temporarily break tests.

mbaynton/batch-framework,mbaynton/batch-framework