Updated CMS code.

Separated code to have a lib and an example.
Improved design, fixed a few issues related to folder location.

This is still experimental and require more work to be really friendly to use.

draft/application/cms/src/hooks/cms_hook_menu_alter.e

@@ -0,0 +1,19 @@
+note
+	description: "Summary description for {CMS_HOOK_MENU_ALTER}."
+	author: ""
+	date: "$Date$"
+	revision: "$Revision$"
+
+deferred class
+	CMS_HOOK_MENU_ALTER
+
+inherit
+	CMS_HOOK
+
+feature -- Hook
+
+	menu_alter (a_menu_system: CMS_MENU_SYSTEM; a_execution: CMS_EXECUTION)
+		deferred
+		end
+
+end