See the documentation at
    http://code.google.com/chrome/webstore/docs/get_started.html
for instructions on how to use these files.

"HelloLicenseServlet.java" contains all the code you need to talk to the Chrome
Web Store Licensing API.

"workspace" contains a complete Eclipse project, "HelloLicense", which you can
import and deploy to Google App Engine after updating
"HelloLicenseServlet.java".