* Close the clients which are unreachable.
Remote client manager test case and comments.
* Test the GRPCRemote client.
* 1. Catch the throwable for onComplete method cause of it will throw exception when connection lost.
2. Check the gRPC channel state, send message when state is ready, wait 5 second when state is not ready.
Notice: gRPC channel getState with true parameter will trigger reconnect operation.
* gRPC client will reconnect to the server when network recorvered.
* Recovery application.yml
* Recovery proto module commit id.
* no message
* Fixed compile error.
* Lock oracle and resin plugins version.
* Move resin and oracle plugin to openskywalking
* Restore submodule active.
* Add another submodule active command.
* Remove the wrong test cases in release and fix some doc issues.
* [maven-release-plugin] prepare release v6.0.0-alpha
* [maven-release-plugin] prepare for next development iteration
* Fix some doc
吴晟 Wu Sheng
彭勇升 pengys