Improved the handling of comannd-line parse errors

catalogue/CreateAdminHostCmdLineArgs.cpp

catalogue/CreateAdminHostCmdMain.cpp

catalogue/CreateAdminUserCmdLineArgs.cpp

catalogue/CreateAdminUserCmdMain.cpp

catalogue/CreateSchemaCmdLineArgs.cpp

catalogue/CreateSchemaCmdMain.cpp

catalogue/DeleteAllCatalogueDataCmdLineArgs.cpp

catalogue/DeleteAllCatalogueDataCmdMain.cpp

catalogue/DropSchemaCmdLineArgs.cpp

catalogue/DropSchemaCmdMain.cpp

catalogue/LockSchemaCmdLineArgs.cpp

catalogue/LockSchemaCmdMain.cpp

catalogue/PollDatabaseCmdLineArgs.cpp

catalogue/PollDatabaseCmdMain.cpp

catalogue/SchemaStatusCmdLineArgs.cpp

catalogue/SchemaStatusCmdMain.cpp

catalogue/UnlockSchemaCmdLineArgs.cpp

catalogue/UnlockSchemaCmdMain.cpp