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/oauth20/scripts/oauth2_table.sql.tpl

@@ -0,0 +1,10 @@
+
+CREATE TABLE $table_name (
+   `uid` INTEGER PRIMARY KEY NOT NULL CHECK(`uid`>=0),
+   `access_token` TEXT  NOT NULL,
+   `created` DATETIME NOT NULL,
+   `details` TEXT NOT NULL,
+   CONSTRAINT `uid`
+    UNIQUE(`uid`)
+   );
+