Added confirmation message when deleting a Correction.
Fixed getLabelKey() on AbstractModel.
Document picker (single) now makes the user choose a Model if attribute 'accepted-model' is left unset or blank.
Added Menus management.
Merge pull request #297 from inthause/documents

Add \Rbs\Catalog\Std\ProductItem class
Added confirmation message when deleting a Correction.
Fixed getLabelKey() on AbstractModel.
Document picker (single) now makes the user choose a Model if attribute 'accepted-model' is left unset or blank.
Added Menus management.
* Added Models service that stores Models information, loaded from the new 'Rbs/ModelsInfo' REST action.
* Added <rbs-model-selector/> directive to let the user select a Model. Options are available to select publishable/activable/root/leaf/abstract Models.
* Refactored DocumentPickerSingle and DocumentPickerMultiple into one single file. There are still two directives, like before, but the linking function is now the same for both directives.
* Added possibility to let the user choose a Model and then Documents of that Model.
Added missing Documents name localization.
Enhanced menu items management with new <rbs-model-selector/>.
Cleanup.
Merge pull request #298 from fredericbonjour/Admin

Enhanced DocumentPickers and Menus management.
Added `REST.executeTaskByCodeOnDocument()` (previously `REST.executeTask()`).
Removed useless test on onReload() function in `<rbs-document-list/>`
Added (experimental) Tasks list on the Dashboard.
Merge pull request #299 from fredericbonjour/Admin

Added (experimental) Tasks list on the Dashboard :)
Add Http Rest 'admin/currentTasks' route