Change all references to Domain Registry to Nomulus

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=136068582

javatests/google/registry/ui/js/registrar/domain_test.js

@@ -49,7 +49,7 @@ function setUp() {
     clientId: 'ignore',
     showPaymentLink: false,
     logoFilename: 'logo.png',
-    productName: 'Domain Registry'
+    productName: 'Nomulus'
   });
   stubs.setPath('goog.net.XhrIo', goog.testing.net.XhrIo);