fix(test): fix running tests & add a sample test

package.json

@@ -34,7 +34,7 @@
     "karma-chrome-launcher": "^0.1.7",
     "karma-coverage": "^0.3.1",
     "karma-jasmine": "^0.3.5",
-    "karma-jspm": "^1.1.5",
+    "karma-jspm": "^2.0.1-beta.2",
     "object.assign": "^1.0.3",
     "require-dir": "^0.1.0",
     "run-sequence": "^1.0.2",

test/unit/configure.spec.js

@@ -0,0 +1,21 @@
+import {configure} from '../../src/index';
+
+class ConfigStub {
+  globalResources(...resources) {
+    this.resources = resources;
+  }
+}
+
+describe('the Aurelia configuration', () => {
+  var mockedConfiguration;
+
+  beforeEach(() => {
+    mockedConfiguration = new ConfigStub();
+    configure(mockedConfiguration);
+  });
+
+  it('should register a global resource', () => {
+    expect(mockedConfiguration.resources).toContain('./hello-world');
+  });
+
+});