Update demos to use non-deprecated workspace calls.

appengine/README.txt

@@ -32,8 +32,11 @@ blockly/
      |- javascript_compressed.js
      `- python_compressed.js
 
-Instructions for fetching Closure may be found here:
+Instructions for fetching the optional Closure library may be found here:
   https://developers.google.com/blockly/hacking/closure
 
+Go to https://appengine.google.com/ and create your App Engine application.
+Modify the 'application' name of app.yaml to your App Engine application name.
+
 Finally, upload this directory structure to your App Engine account,
-wait a minute, then go to http://YOURNAME.appspot.com/
+wait a minute, then go to http://YOURAPPNAME.appspot.com/

appengine/app.yaml

@@ -74,8 +74,9 @@ skip_files:
 - ^(.*/)?\..*$
 # Custom skip patterns.
 - ^static/appengine/.*$
-- ^static/apps/json/.*$
-- ^static/apps/_soy/.+\.jar$
+- ^static/demos/plane/soy/.+\.jar$
+- ^static/demos/plane/template.soy$
+- ^static/demos/plane/xlf/.*$
 - ^static/i18n/.*$
 - ^static/msg/json/.*$
 - ^.+\.soy$