Changes to data model to store refs in product as opposed to object.  Changes to product vc and add product vc to display and save refs and not objects.  Added getSelectedText method to schdropdown so this can be displayed instead of the value selected.
Added advanced search view controller and popover.
Completed advanced search.
Added brandRef to collection entity in data model.  Added brand to new collection vc.  Added brand to collection  list vc search as well as a clear button.  Added clear button to products quick search.
Merge remote-tracking branch 'origin/october' into october