Aggregated Data & Isolation levels demonstration

My part is quite complete

Following steps: 
1) remove aggregatedDataPanel from sqlPanel
2) add one more tab to application - here aggregatedDataPanel will be placed
3) solve automaticaly refreshing for this panel
4) solve automaticaly refreshing for sqlPanel
5) solve switiching between postgres 8.3 (krizik) a postgres 9.1 (noxxik's ntb) - 
now ReservationInsertThread has boolean localhost = false;