Recent changes to 81: Data should be held and returned as Nullable

Recent changes to 81: Data should be held and returned as Nullablehttp://sourceforge.net/p/poco/feature-requests/81/2012-09-14T20:58:07Z2012-09-14T20:58:07Z2012-09-14T20:58:07ZGuenter Obiltschnighttp://sourceforge.net/u/obiltschnig/http://sourceforge.net1d23e8afff4babbbc04102a180f2d02a4fdcc8df