1.1.1

Fixes #26

1.1.0

Grouping functionality

Optionally add a groupId to identify related command pairs. Undo and redo actions will then be performed on all adjacent command pairs with that group id.

For example:

undoManager.add({
  groupId: 'auth',
  undo: () => removePerson(id),
  redo: () => addPerson(id, name)
});

1.0.6

Maintenance release.