This commit includes, caching changes (hazlecast) done in user.core and registry.core (by Darshana and Pulasthi) and Carbon server refactoring/fixes due to new caching impl. This includes setting CC details in server startup threads and removing caching.core from the server

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/kernel/trunk@177147 a5903396-d722-0410-b921-86c7d4935375