Redo/Undo

[tcolar]

• Disallow for large files ?
• Keep undos on disk ? (diff files?)

[tcolar]

Implemented, but still needs

• unit tests (random insert/delete do/undo and check same ??)
• less granular undos, such as a set of alphanums (~word) = 1 undo ...
• limit # of undos ??

[tcolar]

implemented