It’s just the merge of beta-3.1 and beta-3.2, both of which we need.

Created a new sample async client that is non-blocking.  A reader thread is spawned to handle all the RPC results.

Modified sample async client to be non-blocking.  A reader thread is spawned to handle all the RPC results.

Use 'RegisterService' for registering async services.

example README.md

..

Original PR #3074 by @dgquintas

Minor fixes to previously existing docs.