The time range expression for query the live instance between the start time and end time is incorrect.

* Fixed #920

* Sync sub module.

* Fixed #918

* 1. Fixed the remote serialize exception bug when there was a null value in string array.
2. Fixed the topology null exception bug when source or target application id is 0.

* Update UI submodule

* Update UI submodule

* Fixed the no data avg throughput in service bug.

* Fixed no parent dependency for service dependency graph #906

1. Fixed the OverViewLayerQuery#getTopNSlowService method bug which is not order by average response time. (#913)

2. Fixed the OverViewLayerQuery#getTopNApplicationThroughput method bug which is not order by TPS.
3. Fixed the ApplicationQuery#getSlowService method bug which is not order by average response time.
4. Fixed the ApplicationQuery#getServerThroughput method bug which is not order by TPS.

#907

* 1. Add transaction average duration, business transaction average duration, MQ transaction average duration into all metric entities, DAO define, persistence DAO.
2. Add formula calculate operation.

* Refactor the package name in storage module, make the table define and dao package’s name same as others.

* Update How-to-build-CN.md

* Update How-to-build.md

* Try to fix #886

* Try to fix ci.

* Fix a style check.

* Get the MQ server address id from reference.

* Fixed the remote exception bug when running cluster mode collector.
How: Register remote data entity into remote module.

* Fixed the bug which the end second time bucket calculate result is incorrect.

* Fixed a test case error.

* Get the MQ server address id from reference.

* Fixed the remote exception bug when running cluster mode collector.
How: Register remote data entity into remote module.

* Proposal our ROADMAP.

* Update ROADMAP.md

* Update ROADMAP.md

* Update ROADMAP.md

* Update ROADMAP.md

* Update ROADMAP.md

Remove already supported from roadmap.

* Update ROADMAP.md

Add UI roadmap

* Update ROADMAP.md

* Update ROADMAP.md

* Update ROADMAP.md

* Update ROADMAP.md

* Provde the changelog for this month's release.

* Add a new changelog.

* Update CHANGELOG.md

Remove docker document and docker plugin

The instance heart beat implementation of http JSON protocol.

Fixed/855

Create CONTRIBUTING.md

1. Use peer id in entry span to find the instance id and application id.
2. Make the instance id and application id to be the front instance id and front application id of the reference metric.
3. Do not create the application mapping metric.