This is a Drupal distribution for the purposes of demonstrating the Persistent Update API module.
Drush is required to build the distribution, using the following command:
drush make https://raw.githubusercontent.com/Realityloop/pu-demo/7.x-1.x/stub.make pu_demo-7.x-1.x
After the distribution is built, point your webserver at the directory and install as per standard Drupal instructions, making sure to use the Persistent Update API demo installation profile.