Enabling development Google App Engine server to use network interfaces

When the development Google App Engine server is started, it will be accessible by the address http://localhost:8888. But when try to access thru http://127.0.0.1:8888, it will throw error saying "Page Not Found".

Also we can't access the development server by hostname or IP. Just for testing it will be fine, but it will be problematic, when trying to connect from Android emulator. So for this we need to explicitly ask the GAE to enable all network interfaces. Just pass the argument --address 0.0.0.0 to the GAE server argument, then the magic happens.