Merge pull request #893 from loiccouturier/master

Add ProductSet first implementation
Fix popin template code.
Add coupon, discounts and fees edition in orders.
Merge pull request #894 from intportg/dev

Add coupon, discounts and fees edition in orders.
Removed useless fullscreen bar.
Style enhancements in Documents lists and filters.
Add link on Brand's website URL.
Add new Directives for editors: `rbs-document-editor-base`, `rbs-document-editor-new`, `rbs-document-editor-edit`.
This will allow more flexibility when specialising editors for creation and edition.
Style enhancements in dialogs, previews and editors.
Add `<rbs-field-label-title/>` Directive that displays both label and title fields for publishable Documents.
Add new Directive for editors: `rbs-document-editor-translate`.
Style enhancements in editors.
Add new editors for Catalog_Product.
Add new editors for Website_Staticpage.
Add new editors for Website plugin.
Add new editors for Catalog and Stock plugins.
Add possibility to declare `rbs-aside-other-link` links in the asides with the `data-` prefix.
Add new editors for Product Lists in Catalog plugin.
Merge pull request #895 from fredericbonjour/Admin

New Directives for editors (and visual enhancements).
Fix some stuff in order process