Database API override of getMyTransactions, added a configurable default
sort option for user checked out items, fixed recordId / OLE prefix
problem in processMyFinesData, added an item location override for
holdings in getSerialReceiving, fixed a bug that was causing empty
holdings to appear in rare random cases.
Merge pull request #1 from bbusenius/OLE

Database API override of getMyTransactions, added a configurable default