databases/cego: update 2.39.12 -> 2.39.13

• Introduced CegoTransactionManager::getCrashAffectedTables method. In case of a crash recovery, all transaction affected tables have to be analysed for index objects. Before finishing transactions, the index objects have to be invalidated ( since they might be corrupted ) and after completion of transactions they have to be recreated. This is done now in CegoTableManager::finishOpenTransaction
• Fixes in CegoLogManager, CegoRecoveryManager, CegoDistManager and CegoTableManager for LSN handling. Instead of saving the next LSN, now the current written LSN is recorded in CegoLogManager. This seems to be more natural, since a lot of methods set up the LSN to a value + 1. Also this fixes a mismatch between commited lsn and current lsn, which leads to a tableset recovery during startup in any case ( occured with version 2.39.9 )

Submitted by: Bjoern Lemke <lemke@lemke-it.com>