Save button confirmation.

After pressing the save-button the user should receive feedback, if the graph has been successfully saved.

added Cosmetic Editor labels

assigned to @giller

The save button is only available when there are unsaved changes. It automatically disappears, when those changes are saved successfully.

Is that sufficient?

I think an additional confirmation would be nice. The disapearing save icon is not intuitive for me. Maybe just add a short green/red text somewhere (or even add a popup via alert()).

mentioned in commit eb9b0f28

closed