105: Aspen 5.2 Upgrade Fixes 

Task-Url: https://github.com/maine207/aspen/issues/issues/issue/105

Updated the Student Fee Slip files with the code currently on the Aspen
5.2.x production server.
105: Aspen 5.2 Upgrade Fixes 

Task-Url: https://github.com/maine207/aspen/issues/issues/issue/105

Updated Student Fee Slip reports to use the new CashiersJournalEntry,
CashiersJournalDebitItem, and CashiersJournalCreditItem classes for
Aspen v5.2.x.