Make irma-demo test scheme manager more like the real one

testdata/irma_configuration/irma-demo/description.xml

 <SchemeManager version="7">
 	<Id>irma-demo</Id>
-	<Url>https://credentials.github.io/irma_configuration/irma-demo</Url>
+	<Url>https://privacybydesign.foundation/schememanager/irma-demo</Url>
 	<Name>
 		<en>Irma Demo</en>
 		<nl>Irma Demo</nl>
@@ -9,6 +9,5 @@
 		<en>Demo credentials within the IRMA domain</en>
 		<nl>Demo IRMA-credentials</nl>
 	</Description>
-	<Contact>https://www.irmacard.org
-phone@demo.irmacard.org</Contact>
+	<Contact>https://privacybydesign.foundation/</Contact>
 </SchemeManager>

testdata/irma_configuration/irma-demo/index

@@ -9,4 +9,4 @@ ffa2349b0a638132837c767df12c7b15cbac85f648c614a0811b3edb751d0a6d irma-demo/RU/Pu
 e298a2e6dca3bdb923d22734dc4f76ba7b48c5364eb8d7b60e6ec4e940921f89 irma-demo/RU/PublicKeys/2.xml
 a4f6cc35cace3e9dc9388b29a8756ea83e5884f799d75cadd4efa60e1a12d855 irma-demo/RU/description.xml
 35697bb7ffb19518a0ac6739ac3eef6b0272cd322c4619b075328b88c06ac43d irma-demo/RU/logo.png
-d9f04a4b5ddf96e90d19c3baca10fcab2af56baa33eee7dcc9f6d10232f2b80a irma-demo/description.xml
+8dc2ac6f2b697599d788e6580afbeacb1f3d090ba7ba2188c58f165e0da6c776 irma-demo/description.xml

testdata/irma_configuration/irma-demo/pk.pem

 -----BEGIN PUBLIC KEY-----
-MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE3FUAXtr8L/CT7WofXXcl7yiYI59r
-z8ZSb+60UrkIn/ktBlOPlg1SYBNTXP4ITL0x0K4hHDF1DPXyH1F0rpVtCw==
+MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEHVnmAY+kGkFZn7XXozdI4HY8GOjm
+54ngh4chTfn6WsTCf2w5rprfIqML61z2VTE4k8yJ0Z1QbyW6cdaao8obTQ==
 -----END PUBLIC KEY-----

testdata/irma_configuration/irma-demo/sk.pem

+-----BEGIN EC PRIVATE KEY-----
+MHcCAQEEIO841qQYCpxcJ4ruWyllAsHrurV4B8r+NoX/7g/Lbs7doAoGCCqGSM49
+AwEHoUQDQgAEHVnmAY+kGkFZn7XXozdI4HY8GOjm54ngh4chTfn6WsTCf2w5rprf
+IqML61z2VTE4k8yJ0Z1QbyW6cdaao8obTQ==
+-----END EC PRIVATE KEY-----