Explore the DrupalGap 7 documentation to find out how to create a basic 'Hello World' application. Specifically, identify the steps or code snippets provided for setting up the 'Hello World' example, and determine if there are any specific prerequisites or configurations mentioned beyond the initial installation.
Navigate to 'http://docs.drupalgap.org/7/'. Click on the 'Hello World' link in the left-hand navigation menu. Identify and extract the key steps or code examples provided for creating the 'Hello World' application. Note any specific prerequisites, configurations, or files mentioned that are necessary for this example to function.
The agent successfully navigates to the 'Hello World' page within the DrupalGap 7 documentation. The agent identifies the main code snippet or instructions for the 'Hello World' example (e.g., the `app.js` content). The agent states that the example involves creating a custom module and a custom page. The agent mentions the need to enable the custom module in the DrupalGap app settings. The agent confirms if any specific files (e.g., `settings.js`, `app.js`) or directories are mentioned for this example.