Revisited the persistence layer.

Simplified schema to focus on user and node.
Now possible to have sqlite via ODBC and/or mysql support, and select using configuration file.
Updated demo example.

library/persistence/implementation/sqlite/tests/application.e

@@ -1,7 +1,7 @@
 note
 	description : "tests application root class"
-	date        : "$Date: 2014-08-20 15:21:15 -0300 (mi., 20 ago. 2014) $"
-	revision    : "$Revision: 95678 $"
+	date        : "$Date: 2015-01-27 19:15:02 +0100 (mar., 27 janv. 2015) $"
+	revision    : "$Revision: 96542 $"
 
 class
 	APPLICATION
@@ -17,14 +17,11 @@ feature {NONE} -- Initialization
 	make
 			-- Run application.
 		local
-			user: USER_DATA_PROVIDER
-			node: NODE_DATA_PROVIDER
-			l_security: SECURITY_PROVIDER
+			storage: CMS_STORAGE_SQLITE
 		do
-				-- Change the path.
+			-- Change the path.
 			create connection.login_with_connection_string ("Driver=SQLite3 ODBC Driver;Database=./cms_lite.db;LongNames=0;Timeout=1000;NoTXN=0;SyncPragma=NORMAL;StepAPI=0;")
-			create user.make (connection)
-			user.new_user ("test", "test", "test")
+			create storage.make (connection)
 		end
 
 	connection: DATABASE_CONNECTION_ODBC