Fixed #886: Validation config handler is broken for nested validators
Fixed #887: AgaviDatabase::getName() always returns false
reverted faf74c6614342f39f57aba044b0242cd9b1c70d8, refs #887
Fixed #887: AgaviDatabase::getName() always returns false
merged and ported 7cbfda12fc9049fe9dae153b8b37164104c96ac1...5172ae0ee8b8009d5ddf2e1236e8d3373099e834 (from 0.11)