Merge pull request #3 from wso2/release-4.3.1

Merge pull request #32 from dharshanaw/release-4.3.1
Adding release plugin with axis 2 release version change
Merge branch 'release-4.3.1' of https://github.com/dharshanaw/carbon-platform-integration into release-4.3.1
Merge pull request #33 from dharshanaw/release-4.3.1

Release 4.3.1