[TxMt] Undo should accumulate contiguous input

[Allan Odgaard]

On Dec 31, 2004, at 0:14, Lang Riley wrote:

> imo, if you copied and pasted the text in one shot then you should get 
> the behavior you describe, but typing individual letters are each 
> atomic actions that should be undone one at a time, as per textmate 
> currently

Interestingly that's also how I like it :) It's predictable and it 
allows me to visit every previous state.

But there have been some complaints, so it'll be an option in a later 
release, most likely with the chunked undo as the default, seeing how 
most Mac apps do it like this.