Merge pull request #420 from inthause/documents

Add DeclinationGroup Editor
Fixed Breadcrumb localization.
Added missing listener on 'Change:Editor:UpdateMenu' to request update of the main menu.
Added 'picker-template' attribute on document pickers to choose a template for the list in the selector.
Added workaround for a strange Angular behaviour when an expression is not interpolated in an attribute (accepted-model).
Merge pull request #421 from fredericbonjour/Admin

Fixes in DocumentPicker and Main Menu.
Added 'picker-template' attribute on document pickers to choose a template for the list in the selector.
Merge pull request #422 from fredericbonjour/Admin

Added 'picker-template' attribute on document pickers to choose a templa...
Fixed services dependencies in DocumentPickers.
Merge pull request #423 from fredericbonjour/Admin

Fixed services dependencies in DocumentPickers.
Add 'categorizable' property on Rbs_Catalog_Product document