The help article is already updated and now contains instructions for configuring Eclipse apps. The main steps you have to take are pretty much the same - adding the MobileTesting plugin to your project and change the project manifest file.
As Google pushes Android Studio we don't plan to add a separate Demo App built in Eclipse in our distribution. However, following the provided instructions, you should be able to automate apps built with Eclipse as well
Test your Android and iOS apps against any device or browser with Telerik Mobile Testing. Part of the Telerik Platform