Updated CMS with Login Module.

-- The module handle basic_auth (at the moment).
     -- Handle login, logout, register user, activate/reactivate an account, password recovery.
     -- Send notification emails.

CMS Updates
     -- Added a new service: email.
     -- Updated Basic Auth Module to handle logout based on the browser type.
     -- Updated persistence layer to save and remove and query activation token and password token.
     -- Updated CMS_USER to handle status {active, not_active, trashed}.
     -- Updated MySQL scripts to be in sync with SQLite scripts

src/persistence/user/cms_user_storage_null.e

@@ -34,6 +34,14 @@ feature -- Access: user
 		do
 		end
 
+	user_by_activation_token (a_token: READABLE_STRING_32): detachable CMS_USER
+		do
+		end
+
+	user_by_password_token (a_token: READABLE_STRING_32): detachable CMS_USER
+		do
+		end
+
 	is_valid_credential (l_auth_login, l_auth_password: READABLE_STRING_32): BOOLEAN
 		do
 		end
@@ -76,4 +84,27 @@ feature -- Change: roles and permissions
 		do
 		end
 
+feature -- Change: User activation
+
+	save_activation (a_token: READABLE_STRING_32; a_id: INTEGER_64)
+			-- <Precursor>.
+		do
+		end
+
+	remove_activation (a_token: READABLE_STRING_32)
+			-- <Precursor>.
+		do
+		end
+
+feature -- Change: User password recovery
+
+	save_password (a_token: READABLE_STRING_32; a_id: INTEGER_64)
+			-- <Precursor>.
+		do
+		end
+
+	remove_password (a_token: READABLE_STRING_32)
+			-- <Precursor>.
+		do
+		end
 end