message: Unbreak min build
  Switching "-g" to "-t" fixes the error; I'm not sure why we had "-g" in
  the first place as "-t" is the documented way (in the uglifyify README)
  to invoke the transform.
  Closes:
diff: @@ -13,7 +13,7 @@ babel src --ignore __tests__ --out-dir dist/
  echo "Bundling graphiql.js..."
  browserify -g browserify-shim -s GraphiQL dist/index.js > graphiql.js
  echo "Bundling graphiql.min.js..."
  -browserify -g browserify-shim -g uglifyify -s GraphiQL dist/index.js 2> /dev/null | uglifyjs -c > graphiql.min.js 2> /dev/null
  +browserify -g browserify-shim -t uglifyify -s GraphiQL dist/index.js 2> /dev/null | uglifyjs -c > graphiql.min.js 2> /dev/null
  echo "Bundling graphiql.css..."
  postcss --no-map --use autoprefixer -d dist/ css/*.css
  cat dist/*.css > graphiql.css
  