fix to work in browser

run unit tests and integration tests in PhantomJS
add JUnit reporter to unit test so CircleCI can show results

test/integration/wallet-web.js

@@ -0,0 +1,14 @@
+'use strict';
+
+function getAddress() {
+  return 'rQDhz2ZNXmhxzCYwxU6qAbdxsHA4HV45Y2';
+}
+
+function getSecret() {
+  return 'shK6YXzwYfnFVn3YZSaMh5zuAddKx';
+}
+
+module.exports = {
+  getAddress,
+  getSecret
+};