Add missing labelKey in some routes.
Add new route localizedWorkflow + fix breadcrumb.
Some fixes on admin interface (breadcrumb, context, editor, filter)
Rename Rbs_Price_Fee document to Rbs_Commerce_Fee
Add variant prices editor
Merge pull request #863 from loiccouturier/master

Enhance Product and Cart and add variant prices editor
Implement fees and discounts on Cart and Order