Added support for OpenID identity

Added user roles management
Improvement CMS_HOOK_FORM_ALTER design.
Factorized code into CMS_WIDGET_COMPOSITE
Use general notion of CMS_WIDGET (and CMS_FORM allows CMS_WIDGET, and not just CMS_FORM_ITEM)
Fixed various CMS_WIDGET traversal, and fixed related issue for CMS forms
Fixed CMS_FORM_CHECKBOX_INPUT when no value was set.
Added CMS_FORM_DATA.cached_value .. to pass computed values during validation to submit actions (mainly for optimization)
Added support for @include=filename  in CMS_CONFIGURATION
Added CMS_WIDGET_TABLE as filled version of CMS_WIDGET_AGENT_TABLE (renamed from previous CMS_WIDGET_TABLE)
Many improvements to the CMS_FORM design
Some improvements to CMS_MODULE
...

draft/application/cms/src/modules/cms_module.e

@@ -41,17 +41,18 @@ feature -- Hooks
 
 	help_text (a_path: STRING): STRING
 		do
-			Result := ""
+			create Result.make_empty
 		end
 
-	permissions: LIST [TUPLE [title: detachable STRING; description: detachable STRING]]
+	permissions (a_service: CMS_SERVICE): LIST [CMS_PERMISSION]
 		do
-			create {ARRAYED_LIST [like permissions.item]} Result.make (0)
+			create {ARRAYED_SET [CMS_PERMISSION]} Result.make (0)
 		end
 
 	links: HASH_TABLE [CMS_MODULE_LINK, STRING]
 			-- Link indexed by path
-		deferred
+		do
+			create Result.make (0)
 		end
 
 end