renamed mediation library component as connectors

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@178719 a5903396-d722-0410-b921-86c7d4935375
Fixing

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@178720 a5903396-d722-0410-b921-86c7d4935375