message: update package.json of ethereum to remove ember app test commands
diff: "test": "tests"
  },
  "scripts": {
  - "build": "ember build",
  - "start": "ember serve",
  - "test": "ember try:each",
  + "test": "npm run ethereum-tests",
  "ethereum-tests": "../../node_modules/.bin/truffle test",
  "private-blockchain": "../../node_modules/.bin/truffle develop"
  },
  