Merge pull request #400 from intportg/dev

Dev
Add new section page function : Error_401, Error_403, Error_404, Error_500
Fix Rbs_Website_Exception block
[UPDATE] set notifications mail reschedule
Merge pull request #402 from renaudJennyRBS/mail

[UPDATE] set notifications mail reschedule
Removed useless "publishable=false" attribute on <rbs-document-list/>.
Renamed <status-switch/> Directive to <activate-switch/>, used to change the 'active' property of Documents.
Fixed publishable/activable attributes on <rbs-document-list/>.
Merge pull request #403 from fredericbonjour/Admin

Fixed publishable/activable attributes on <rbs-document-list/>.
Fixed "undefined" in Breadcrumb when creating Documents.
When a Document has been created, the Editor now redirects to the real URL of the new Document.
Merge pull request #404 from fredericbonjour/Admin

Fixed Document creation: Breadcrumb now displays "New item" instead of "undefined", and a redirection is made to the real Document URL after it has been created.
Merge pull request #401 from inthause/documents

Add new 'error' section page function
[NEW] Web permission rules
[UPDATE] Improve web permission UI and query
[UPDATE] improve UI (move it directly in editor)
[UPDATE] clean-up
Merge pull request #405 from renaudJennyRBS/webpermission

Web permission
Insert block chooser when a column is empty.
Added `REST.ensureLoaded()` method that fully loads the given document, only if it has not been loaded yet.