* first commit

* ad

* add

* add

* add

* add

* add

* add

* add

* add

* add

* add

* add

* 调整和修改中间件，框架与类库支持列表 目录文档

* add

* add

* 修改Incubating

* add

Sync English documents to Chinese.

* Add login filter

Username and password are stored in application.yml with
prefix "security.user"

* Modify startup script and add webapp.yml config file

* Update quick-start document for default login username/password

* Update deploy document for new webapp.yml config file

* Update license for new files.

* support shardingjdbc database storage feature

* add document

* modify the document

* format document style

* #1263

Separated TTL from minute to minute, hour, day, month.

* 1. Minute metric data ttl change to 90, because of the 1 hour duration condition in UI means 60 minutes.
And i prefer to setting the value up to above 50%.
2. Some description and logging.

#1263

* Add a config time named traceDataTTL for trace data TTL.

#1263

* Fixed the logger english sentence mistake.

* To bring forward a way to solve Import-Project-Eclipse-RequireItems-Exception

* way to solve Import-Project-Eclipse-RequireItems-Exception

* To bring forward a way to solve Import-Project-Eclipse-RequireItems-Exception

* Required items could not be found, when import project into Eclipse.

* using markdown style to quote the errors.

fix wrong description for chinese document

* update faq doc

* update faq

* update faq

* Update How-to-build-CN.md

* Update How-to-build.md

* Add RunnableWrapper

* movement

* Fix Location

* fix based on org.apache.skywalking.apm.agent.core.context.trace.AbstractTracingSpan.logs

* Fix Code Bug

* Fix Doc

* Protoc plugin fails when build

* add doc for TraceCrossThread

* partial doc

* tls

* translat all chinese document

* remove english

* revised submodule

* Fix link to proto files

* Fix proto path.

* add npm install error tips.

tell people use taobao's npm source.

* Update How-to-build-CN.md

* Update docs for alpha release

* Delete a comma.

* Update How-to-build.md

* Add data-set licenses file

* Rename LICENSES-data-set to LICENSE-data-set

* Update LICENSE

* Remove fastclick from LICENSE

* Make the git submodule command to be a maven profile plugin. Let this command not execute by default install command.

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

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

* Product name is not correct

* Add more documents for release.

* Change profile id.

* Add CHANGES file in distribution file.

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

This reverts commit ac815019.

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

This reverts commit 095597c9.

* Add rat plugin to check dependency license and add license head into missing files.

* Fix docs.

* Exclude web ui config file.

* Next release guide.

* UI update.

* Update docs.

* Build source shell.

* Update docs and source release.

* remove .sha256 requirement.

* Update How-to-release.md

* Update How-to-release.md

* Update build doc.

* Update docs.

* Update How-to-release.md

* Update How-to-release.md

* Update docs for alpha release

* Delete a comma.

* Update How-to-build.md

* Add data-set licenses file

* Rename LICENSES-data-set to LICENSE-data-set

* Update LICENSE

* Remove fastclick from LICENSE

* Make the git submodule command to be a maven profile plugin. Let this command not execute by default install command.

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

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

* Product name is not correct

* Add more documents for release.

* Change profile id.

* Add CHANGES file in distribution file.

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

This reverts commit ac815019.

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

This reverts commit 095597c9.

* Add rat plugin to check dependency license and add license head into missing files.

* Fix docs.

* Exclude web ui config file.

* Next release guide.

* UI update.

* Update docs.

* Build source shell.

* Update How-to-build-CN.md

* Update How-to-build.md

Make zh description more clear.