* free Psqlite3_stmt later, in TSQLiteGridRows.Destroy, not in TSQLiteConnection.Query directly after execution
* move code from TAdoDBQuery.TableName to TDBQuery.TableName, as this is generic SQL parsing which works for all layers (though not so reliable)
* define and use SQLite column datatypes, at least the few groups (int, text, real, blob, date)
* TSQLiteConnection.GetThreadId now returns the application process id, as there is no connection pid in SQLite
* drop workaround for application crash on WinXP, when loading newer libmariadb (see #79)
* raise TDbLib's own exception instead of baking an own one with less details. Probably helps in debugging: https://www.heidisql.com/forum.php?t=34044
* rename EDatabaseError to EDbError, to overcome naming conflict in DB unit
* load libpq.dll always with path, which should anyway work better than without it. See http://www.heidisql.com/forum.php?t=22514
