• #85: Add optional storage prop to PanelGroup to make it easier to persist layouts somewhere other than localStorage (e.g. like a Cookie).
• #70: When resizing is done via mouse/touch event– some initial state is stored so that any panels that contract will also expand if drag direction is reversed.
• #86: Layout changes triggered by keyboard no longer affect the global cursor.
• Fixed small cursor regression introduced in 0.0.33.