0.9.1

Added

• filterQuality option to the property to improve image quality after scale #228
• loadFailedChild option to specify a widget instance to be shown when the image retrieval process failed #231

Changed

• Internal: stop using deprecated inheritFromWidgetOfExactType in favor of dependOnInheritedWidgetOfExactType #235
• Made childSize optional for PhotoViewGalleryPageOptions.customChild #229