New prepareTest method

gistfile1.java

@Override 
public void prepareTest(Object test) {
    NutbarTestModule module = new NutbarTestModule();
    RoboGuice.setBaseApplicationInjector(Robolectric.application, RoboGuice.DEFAULT_STAGE,      Modules.override(RoboGuice.newDefaultRoboModule(Robolectric.application)).with(module));

    Injector injector = RoboGuice.getInjector(Robolectric.application.getApplicationContext());
    injector.injectMembers(test);
}