Integrate Authentication modules.

Updated code for sql that should not use parameters
   to expand :table_name in table name usage,
   since Eiffel Store will use quote,
   and MySQL does not like them.

Merge remote-tracking branch 'jvelilla/roc_auth_v1' into ewf_v1_mod_env

Conflicts:
	examples/demo/demo-safe.ecf
	modules/auth/cms_authentication_module.e

examples/demo/site/modules/node/scripts/node.sql

@@ -0,0 +1,22 @@
+
+CREATE TABLE nodes (
+	`nid`	INTEGER NOT NULL PRIMARY KEY AUTO_INCREMENT UNIQUE,
+	`revision`	INTEGER,
+	`type`	TEXT NOT NULL,
+	`title`	VARCHAR(255) NOT NULL,
+	`summary`	TEXT,
+	`content`	TEXT,
+	`format`	VARCHAR(128),
+	`author`	INTEGER,
+	`publish`	DATETIME,
+	`created`	DATETIME NOT NULL,
+	`changed`	DATETIME NOT NULL,
+	`status`	INTEGER
+);
+
+CREATE TABLE page_nodes(
+  `nid` INTEGER PRIMARY KEY AUTO_INCREMENT NOT NULL,
+  `revision` INTEGER,
+  `parent` INTEGER
+);
+