title: @Loadbalanced - will it work with AsyncRestTemplate?
body: <p>I tried to follow "<a href="https://github.com/spring-cloud/spring-cloud-sleuth/issues/124" rel="nofollow noreferrer">https://github.com/spring-cloud/spring-cloud-sleuth/issues/124</a>" (<a href="https://github.com/spring-cloud-samples/brewery/blob/master/brewing/src/main/java/io/spring/cloud/samples/brewery/bottling/BottlingConfiguration.java#L30" rel="nofollow noreferrer">https://github.com/spring-cloud-samples/brewery/blob/master/brewing/src/main/java/io/spring/cloud/samples/brewery/bottling/BottlingConfiguration.java#L30</a>) but it didn't help.
  The loadBalancerInterceptor is not added to the AsyncRestTemplate.
  When I debugged, I found that the interceptors are added/registered "after" all the beans are created - so AsyncRestTemplate gets created immediately after RestTemplate and before @Loadbalanced interceptor gets added.</p>