* 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

* Change version 

* provides a optional-plugin for tracking ignores enhancement(#1203)

* trace ignore plugin config support override by system.env

* optimize the trace ignore plugin and make normalization of pom

* add AntPathMatcher and an junit test for it

* No longer rely on the spring framework

* add license at file header

* rebuild pom and rewrite README

* rebuild optional-plugins pom

* clean up useless code

* modify junit

* rewrite the ant path match logic

* rename the matcher class

Fix IPMC checks for releasing.

* [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.