Adding Changes of Malaka Silva

This is depend on https://github.com/wso2-dev/wso2-axis2/pull/3
Fixing the issue of removing properties at operation scope (fixing the issue ESBJAVA-3048)
Fixing the issue of removing properties at operation scope (fixing the issue ESBJAVA-3048)
Merge pull request #1 from vanjikumaran/master

Adding Changes of Malaka Silva
Merge pull request #2 from chanakaudaya/master

Fixing the JIRA ESBJAVA-3048
Merge pull request #12 from wso2-dev/master

Pull request to sych up with wso2-dev