wvteijlingen/JS-UndoManager — pull request #1 by koppor (2014-02-23 14:44:15+00:00)
Title: Separates concerns at demo

* setPosition now does all display work and only "registerUndoAction" regarding undo/redo functionality
* onundo/onredo are for information only
* updateButtons is done at onchange (obsolete at setPosition)