message: udpate angular 4.0.0-rc.2
diff: "test:watch": "karma start config/karma.conf.js --watch"
  },
  "dependencies": {
  - "@angular/common": "4.0.0-rc.1",
  - "@angular/core": "4.0.0-rc.1",
  - "@angular/forms": "4.0.0-rc.1",
  - "@angular/animations": "4.0.0-rc.1"
  + "@angular/common": "4.0.0-rc.2",
  + "@angular/core": "4.0.0-rc.2",
  + "@angular/forms": "4.0.0-rc.2",
  + "@angular/animations": "4.0.0-rc.2"
  },
  "devDependencies": {
  - "@angular/compiler": "4.0.0-rc.1",
  - "@angular/compiler-cli": "4.0.0-rc.1",
  - "@angular/http": "4.0.0-rc.1",
  - "@angular/platform-browser": "4.0.0-rc.1",
  - "@angular/platform-browser-dynamic": "4.0.0-rc.1",
  - "@angular/platform-server": "4.0.0-rc.1",
  - "@angular/router": "4.0.0-rc.1",
  + "@angular/compiler": "4.0.0-rc.2",
  + "@angular/compiler-cli": "4.0.0-rc.2",
  + "@angular/http": "4.0.0-rc.2",
  + "@angular/platform-browser": "4.0.0-rc.2",
  + "@angular/platform-browser-dynamic": "4.0.0-rc.2",
  + "@angular/platform-server": "4.0.0-rc.2",
  + "@angular/router": "4.0.0-rc.2",
  "@types/chai": "3.4.35",
  "@types/jasmine": "2.5.43",
  "@types/node": "7.0.5",
  