[Fix] [REGISTRY-1653] Reg Based DepSync does not work in tenant mode

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/kernel/trunk@176929 a5903396-d722-0410-b921-86c7d4935375
Moved cahing impl to javax.cache


git-svn-id: https://svn.wso2.org/repos/wso2/carbon/kernel/trunk@176932 a5903396-d722-0410-b921-86c7d4935375
Moved caching to javax.cache


git-svn-id: https://svn.wso2.org/repos/wso2/carbon/kernel/trunk@176933 a5903396-d722-0410-b921-86c7d4935375