Issue #20104:use cust_financecharge for exemptions
Issue #22931:account for all control/location combinations
Issue #20104:use cust_gracedays to override fincharg_graceperiod
Merge pull request #134 from garyhgohoos/20104-3

Issue #20104:use cust_financecharge for exemptions
Merge pull request #135 from garyhgohoos/22931

Issue #22931:account for all control/location combinations