[Pharo-project] Create a changeset for an entire package?

It seems fixing bugs is not the only hard part... I've a bunch of fixes for GLCanvas, and a small proposed change for the class browser but I can't find a way to export a diff of all the changed packages, nor a diff of an entire package nor a diff of a class so anybody can see the changes before commiting... Do I have to file out every class I changed? there has to some easier way. Thanks, Javier. -- Javier Pimás Ciudad de Buenos Aires