rss data publisher feature added

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@183871 a5903396-d722-0410-b921-86c7d4935375
rss publisher added to rss manager pom

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@183872 a5903396-d722-0410-b921-86c7d4935375