restructuring rss-manager component

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@178095 a5903396-d722-0410-b921-86c7d4935375
Fixing a compilation failure

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@178096 a5903396-d722-0410-b921-86c7d4935375