EditWindowController: Forward save event from editWindow to grid

Easier access to react on changes to grid
GridPanelController: Fire save event also if autoSync false

autoSync defines changes are immediately saved to server resulting in
savesuccess. Save should only define changes happend.
EditWindowController: fire add event also for GridPanel

Easier access to react on add event
Merge pull request #6 from Ben-Ho/master-forwardevents

Forward events for easier access