merging changes from branch 4.1.0

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@175845 a5903396-d722-0410-b921-86c7d4935375
merging changes from branch 4.1.0

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@175846 a5903396-d722-0410-b921-86c7d4935375
merging changes from branch 4.1.0

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@175847 a5903396-d722-0410-b921-86c7d4935375
merging changes from branch 4.1.0

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@175848 a5903396-d722-0410-b921-86c7d4935375