* Update new protocol
* Support new protocol at agent side.
* Fix test case.
* Make backend supports new trace protocol
* Fix tests.
* Make all new services available in gRPC.
* Fix bugs.
* Finish new document for v2 trace protocol.
* Fix wrong version requirement of zk
* Fix trace query bug.
* Find a client side dictionary bug.
* Fix register bugs.
* Fix break doc links.
* 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
* Fix mesh receiver doesn't update heartbeat.
* Fix bug of mesh heartbeat and rest receiver.
* Fix issue: opencensus is included in agent without shade. @tuohai666
* Support maxConcurrentCallsPerConnection and maxMessageSize in grpcServer
* Make percent percent is 1/10000
* Fix test cases.
* Make service instance indicator dispatch based on server side only.
* Set init data right in AlarmMeta.
* Make endpoint query based on server side only.
* Make receiver more effective
* Add Istio test case and all source dispatch in
* Refactor mock data
* FIx rat.
* Support call component.
* Fix ThermodynamicIndicator bug.
* Fix test cases.
* Fix missing calculate in db merging.
* Add codes for debug.
* 1. Fixed elasticsearch bulk process not fresh bug. (#1819)
2. Fixed the bug of source register no queue but wait the end for batch tag.
* Remove debug log, and restore TTL timer for real scenarios.