Ensured failed tests trigger travis fails.

Former-commit-id: d513b5b1bae77ab1f4aa9e98ec3622e143048def

package.json

@@ -47,6 +47,6 @@
   },
   "scripts": {
     "build": "node build",
-    "test": "node test/test;node test/test-build"
+    "test": "node test/test && node test/test-build"
   }
 }

vendor/qunit-clib/qunit-clib.js

@@ -171,7 +171,7 @@
 
     // exit out of Node.js
     try {
-      process.exit();
+      process.exit(details.failed);
     } catch(e) { }
   }