babel-register use only for e2e tests (vuejs-templates#1120)

* babel-register use only for tests e2e

single require here template/test/e2e/nightwatch.conf.js

* remove double dependency.

Author: PowerfulPony

template/package.json

@@ -76,6 +76,7 @@
     "phantomjs-prebuilt": "^2.1.14",
     {{/if_eq}}
     {{#e2e}}
+    "babel-register": "^6.22.0",
     "chromedriver": "^2.27.2",
     "cross-spawn": "^5.0.1",
     "nightwatch": "^0.9.12",
@@ -87,7 +88,6 @@
     "babel-plugin-transform-runtime": "^6.22.0",
     "babel-preset-env": "^1.3.2",
     "babel-preset-stage-2": "^6.22.0",
-    "babel-register": "^6.22.0",
     "chalk": "^2.0.1",
     "copy-webpack-plugin": "^4.0.1",
     "css-loader": "^0.28.0",