Update demo deploy script and fix gcloudignore file (#4566)

appengine/.gcloudignore

@@ -2,14 +2,12 @@
 .*
 *.soy
 *.komodoproject
-/deploy
+deploy
 /static/appengine/
-/static/closure/
 /static/demos/plane/soy/*.jar
 /static/demos/plane/xlf/
 /static/externs/
 /static/msg/json/
-/static/node_modules/
 /static/scripts/
 /static/typings/
 

appengine/deploy

@@ -1,16 +0,0 @@
-#!/bin/bash
-
-# Script to deploy on GAE.
-
-APP=./app.yaml
-if ! [ -f $APP ] ; then
-   echo $APP not found 1>&2
-   exit 1
-fi
-
-PROJECT=blockly-demo
-VERSION=37
-
-echo 'Beginning deployment...'
-gcloud app deploy --project $PROJECT --version $VERSION --no-promote
-echo 'Deployment finished.'