Added minimal java objects for SMTP Log.
Added getLogByOriginalMessageId
Added original message ID to log.
Added: public LogInterface getLogByMessageId(String messageId)
Added method signature for getLogByMessageId
Added public boolean doesDirectExist(String directEmail) throws DatabaseException
Added: updateStatus
Added method signature for updateStatus
XDR Simulator MessageID is now constrained to be unique at the database level.
Added: addNewSimulator getSimulatorBySimulatorId
