Merge pull request #7 from wso2/release-4.3.0

Release 4.3.0
adding parent pom
update p2 plugin version
updating test framework to released version
Merge branch 'release-4.3.0' of https://github.com/supunmalinga/carbon4-kernel into supunmalinga-release-4.3.0
Merge branch 'supunmalinga-release-4.3.0' into release-4.3.0