Merge branch '262-sso-integration-for-ariba-trust' into 'master'

Resolve "SSO integration for Ariba Trust"

Closes #262

See merge request !373

nefed.xml

@@ -28003,7 +28003,7 @@ Gk3Mp05d1eUmuSx+la30QAXkFgNXDP3Cp3JSKyG5A6EWjhXTyuNZcI/ffo6tjNWg
             </ds:X509Data>
         </ds:KeyInfo>
     </KeyDescriptor>
-    <NameIDFormat>urn:oasis:names:tc:SAML:2.0:nameid-format:emailAddress</NameIDFormat>
+    <NameIDFormat>urn:oasis:names:tc:SAML:2.0:nameid-format:persistent</NameIDFormat>
     <AssertionConsumerService
           isDefault="true"
           Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST"