Added support for path_aliases.

Refactored CMS_MODULE.router (..): WSF_ROUTER design,
  to create only one router object of type CMS_ROUTER.
Added optional CMS_NODE.link: CMS_LOCAL_LINK
Reviewed permissions related to node module.
Refactor and add CMS_STORAGE_SQL(_BUILDER) abstractions
   for implementation relying only on SQL statements.
Factorized sql builder initialization (to work for sqlite and mysql storage builders).
Added CMS_RESPONSE.formatted_string (a_text: READABLE_STRING_GENERAL; args: TUPLE): STRING_32
Added function "translation", but not implemented for now.
Updated indexing notes and comments.
Code cleaning.

modules/node/handler/nodes_handler.e

@@ -40,6 +40,7 @@ feature -- HTTP Methods
 			l_page: CMS_RESPONSE
 			s: STRING
 			n: CMS_NODE
+			lnk: CMS_LOCAL_LINK
 		do
 				-- At the moment the template is hardcoded, but we can
 				-- get them from the configuration file and load them into
@@ -57,8 +58,10 @@ feature -- HTTP Methods
 					lst as ic
 				loop
 					n := ic.item
+					lnk := node_api.node_link (n)
 					s.append ("<li class=%"cms_type_"+ n.content_type +"%">")
-					s.append (l_page.link (n.title + " (#" + n.id.out + ")", node_api.node_path (n), Void))
+					s.append (l_page.link (lnk.title, lnk.location, Void))
+--					s.append (l_page.link (n.title + " (#" + n.id.out + ")", node_api.node_path (n), Void))
 					s.append ("</li>%N")
 				end
 				s.append ("</ul>%N")