message: build: update version numbers in ./scripts/release/post-check-next
diff: mkdir tmp
  cd tmp
  npm init -y
  -npm install typescript@2.6 rxjs@5.5.0 zone.js@0.8.10 @angular/{animations,core,common,forms,router,platform-browser,platform-browser-dynamic,platform-webworker,platform-webworker-dynamic,platform-server,compiler,compiler-cli,language-service,service-worker,upgrade}@next --save
  +npm install typescript@2.7 rxjs@6.0.0-beta.1 zone.js@0.8.20 @angular/{animations,core,common,forms,router,platform-browser,platform-browser-dynamic,platform-webworker,platform-webworker-dynamic,platform-server,compiler,compiler-cli,language-service,service-worker,upgrade}@next --save
  cd ..
  rm -rf tmp
  