Statement Reversals; added new Script event to handle additional processing requirements

A new Script event has been added for Statement Reversals to handle additional processing requirements.

A script of type "Object Events", object "AccountStatementReverse" should be created to handle Statement Reversal events. After a script has been created, it must be linked to the Global Settings, Accounts, Scripts page, "AccountStatementReverse" event script.

The script handles two events:

ReverseStatementPreInTransaction
The event runs after a Database Transaction has begun but before any work has started. Use to implement additional functionality whilst the Statement is still linked to Transactions.

ReverseStatementPostInTransaction
The event runs after work has been completed but before the Database Transaction is committed. Use to implement additional functionality that must be part of the overall Commit.

The following parameters are passed across:

Source; The Pk of the Account.
ContextData1; The Pk of the AccountLog (i.e. Statement) reversing.