use consisten naming convention for npm tasks and use npm-run-all for docker task

package.json

@@ -7,8 +7,9 @@
     "tsc:w": "tsc -w",
     "lite": "lite-server",
     "typings": "typings",
-    "docker-build": "docker build -t ng2-quickstart .",
-    "docker": "npm run docker-build && docker run -it --rm -p 3000:3000 -p 3001:3001 ng2-quickstart",
+    "docker:build": "docker build -t ng2-quickstart .",
+    "docker:run": "docker run -it --rm -p 3000:3000 -p 3001:3001 ng2-quickstart",
+    "docker": "npm-run-all docker:build docker:run",
     "postinstall": "typings install"
   },
   "license": "ISC",