Allow to login with username or email.

Removed useless and unimplemented feature from CMS_FORM .
SCOOP is default for demo.ecf
Made blog and page module self administrable, i.e administration module is same as module.
This fixes the export hook for page and blog modules.
Improved sql instructions to ease debugging and catch missing sql_finalize... call.
Cleaned sql code.

modules/blog/cms_blog_module.e

@@ -17,6 +17,8 @@ inherit
 			blog_api
 		end
 
+	CMS_WITH_MODULE_ADMINISTRATION
+
 	CMS_HOOK_MENU_SYSTEM_ALTER
 
 	CMS_HOOK_RESPONSE_ALTER
@@ -81,13 +83,21 @@ feature {CMS_API} -- Module management
 			end
 		end
 
-feature {CMS_API} -- Access: API
+feature {CMS_API, CMS_MODULE} -- Access: API
 
 	blog_api: detachable CMS_BLOG_API
 			-- <Precursor>
 
 	node_api: detachable CMS_NODE_API
 
+feature {NONE} -- Administration
+
+	administration: CMS_SELF_MODULE_ADMINISTRATION [CMS_BLOG_MODULE]
+			-- Administration module.
+		do
+			create Result.make (Current)
+		end
+
 feature -- Access: router
 
 	setup_router (a_router: WSF_ROUTER; a_api: CMS_API)