Update upgrade notes.

docs/simplesamlphp-upgrade-notes-1.14.txt

@@ -71,6 +71,7 @@ The following deprecated methods and constants have been removed:
 
 The following methods have changed their signature. Refer to the code for the updated signatures:
 
+    * `SimpleSAML_Auth_Default::initLogin()`
     * `SimpleSAML_Auth_Default::initLogout()`
     * `SimpleSAML_Auth_Default::initLogoutReturn()`
     * `SimpleSAML_Metadata_MetaDataStorageHandler::getGenerated()`
@@ -89,7 +90,11 @@ The following methods and classes have been deprecated. Refer to the code for al
     * `SimpleSAML_Auth_Default::extractPersistentAuthState()`
     * `SimpleSAML_Auth_Default::handleUnsolicitedAuth()`
     * `SimpleSAML_Auth_Default::initLogin()`
+    * `SimpleSAML_Auth_Default::initLogout()`
+    * `SimpleSAML_Auth_Default::initLogoutReturn()`
     * `SimpleSAML_Auth_Default::loginCompleted()`
+    * `SimpleSAML_Auth_Default::logoutCallback()`
+    * `SimpleSAML_Auth_Default::logoutCompleted()`
     * `SimpleSAML_Utilities`
     * `SimpleSAML_Utilities::addURLParameter()`
     * `SimpleSAML_Utilities::aesDecrypt()`