Rework of catalog objects. Several of them are now inheriting from common

base classes that implement common functionality.

pglab/DatabasesTableModel.cpp

@@ -112,7 +112,7 @@ QVariant DatabasesTableModel::getData(const QModelIndex &index) const
 		const PgDatabase &db = m_databases->getByIdx(index.row());
 		switch (index.column()) {
 		case NameCol:
-			v = db.name;
+			v = db.objectName();
 			break;
 		case DbaCol:
 			v = getRoleDisplayString(*m_catalog, db.dba);