Closed Policy Exception work queue

Code	`ClosedPolicyException`
Categories	`UIRunnable`, `Schedulable`
Implementation	Work queue
Schedule	Not scheduled
Class	ClosedPolicyExceptionWorkQueue.java

The Closed Policy Exception work queue runs policy exception rules on every closed PolicyPeriod that has not had exception rules run on it for a defined number of days.

Parameter ClosedPolicyThresholdDays in config.xml defines the minimum number of days that must pass before PolicyCenter runs the Exception rules again on a closed PolicyPeriod.