LP#1198465 fine generator billing sort repairs.

LP#1198465 fine generator billing sort repairs.

1. cstore expects order_by's to be delineated by object class

2. CStoreEditor requires all params that are passed through to cstore to
be contained within the first parameter to a search_*, etc. calls, so
wrap the query and order_by clauses in an array.

Without these changes, the fine generator would generate duplicate
billings when voided billings were present.

Signed-off-by: Bill Erickson <berickxx@gmail.com>