Compatibility issues with emulators

Does this library work in the emulator? We had quite a few examples here already where things only worked on a real device.

What's wrong on emulators? Are there any exceptions?

What server URL to use when both the server and the emulator run locally on the development machine? Something like `ws://127.0.0.1/websocket`?

Some other libraries have to disable IPv6 when using the emulator. So maybe this helps:

``` java
// if (Build.PRODUCT.equals("google_sdk")) {
java.lang.System.setProperty("java.net.preferIPv6Addresses", "false");
java.lang.System.setProperty("java.net.preferIPv4Stack", "true");
// }
```