Better support for undo/redo at notebook level

[ildipo]

Current undo/redo operates only on cell delete and has only one undo level.
We need a better support with a larger history buffer and to support also cell reorg, cut and paste, etc.

[scottdraves]

this is very important. we should make sure that our undo and editing is compatible with collaborative editing: #128

[hydrosquall]

I just accidentally deleted a cell- in the meantime before undo is implemented, it would be nice to ask for a confirmation before deleting a cell.

[scottdraves]

actually we do support undo in that case.
just hit control z.

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On Dec 17, 2015 2:03 AM, "Cameron Yick" [email protected] wrote:

I just accidentally deleted a cell- in the meantime before undo is
implemented, it would be nice to ask for a confirmation before deleting a
cell.

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