2. Fixed the warning of duplicate declaration of plugin issue when running the mvn package command.
3. Fixed the warning of duplicate declaration of mysql connector jar when running the mvn package command, because of provided scope include test scope.
4. Fixed the warning of expression ${artifactId} is deprecated issue when running the mvn package command.
5. Fixed the warning of expression ${version} is deprecated issue when running the mvn package command.
* fix issue #2258
* fix#2097#1947
* remove Description and date tag
* split the diferent version to different plugins
* resolve conflict
* record all ips on multiple host mode of mysqlconnector-5x
* fix jdk 6.x
* optimise the code
* optimise code
* modify class name
* fix#2097#1947
* i do not think it is a good idea to move the Instrumentation to mysql-common,the better way is extract a public method to return the InteceptorPionts in mysql-common
* fix#2097#1947
* remove witnessClasses of subclasses
* 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