Update Changelog

Author: pitbulk

CHANGELOG

@@ -1,5 +1,14 @@
 CHANGELOG
 =========
+v3.5.0
+* [#412](https://github.com/onelogin/php-saml/pull/412) Empty instead of unset the $_SESSION variable
+* [#433](https://github.com/onelogin/php-saml/issues/443) Fix Incorrect Destination in LogoutResponse when using responseUrl #443
+* Update xmlseclibs to 3.1.1
+* Add support for SMARTCARD_PKI and RSA_TOKEN Auth Contexts
+* Get lib path dinamically
+* Check for x509Cert of the IdP when loading settings, even if the security index was not provided
+* Support Statements with Attribute elements with the same name enabling the allowRepeatAttributeName setting
+
 v3.4.1
 * Add setSchemasPath to Auth class and fix backward compatibility