* Revert reset feature.

* Set default dist alarm settings and make dist package setting files right.

* Support empty list.

* Manually trigger agent registration and write registration status to file

* Delete unused variables

* Code optimization, encapsulating some methods

* add clear DataCarrier function

* revert SkyWalkingAgent

* Optimize code and logic, including updating applicatin_id in unRegisterOperationNames

* Server end metadata loss notification

* Server end metadata loss notification

* fix file stream close and other problem

* revert to old

* fix some bug
Signed-off-by: NLiu-XinYuan <879928098@qq.com>

* fix some bugs in agent reset

* add close inputStream and fileChannel and fix some bug

* fixed some bugs

* 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.

* Buffer stream.

* Buffer file reader.

* Change version 

* commons testcase

* some ui module query testcase

* add testcase

* fix some checkStyle issue

* add some null testcase

* remove

* add license

* fix author error

* remove invalid tag @date

* add license which has been missed

* [maven-release-plugin] prepare release apm-5.0.0-alpha

* [maven-release-plugin] prepare for next development iteration

Fix assmbly for mvn clean install -Papache-release and update version to SNAPSHOT for SNAPSHOT release.

Fixing javadoc. And try to trigger a ci fail in this commit, in order to make sure javadoc will be checked in further pull request.

clean code

Move `apm-network` module under the new root module `apm-protocol`. And add `apm-ui-query` under the `apm-protocol` module.

Support to set consume cycle. And invoke the existed callbacks when the message blocked at first time.

This reverts commit 5c56d41a.