Added overridability to CoreModule
Added overridability to CoreModule

kairosdb/kairosdb,george-aprozeanu/kairosdb,at15/kairosdb-1,deejay1/kairosdb,wangtuanjie/kairosdb,rdettai/kairosdb,george-aprozeanu/kairosdb,wangtuanjie/kairosdb,lgscofield/kairosdb,kairosdb/kairosdb,rdettai/kairosdb,deejay1/kairosdb,panqingcui/kairosdb-1,deejay1/kairosdb,george-aprozeanu/kairosdb,lgscofield/kairosdb,at15/kairosdb-1,rdettai/kairosdb,kairosdb/kairosdb,pawellesniewski/kairosdb,panqingcui/kairosdb-1,wangtuanjie/kairosdb,lgscofield/kairosdb,rdettai/kairosdb,george-aprozeanu/kairosdb,ppbizapps/kairosdb,ppbizapps/kairosdb,rdettai/kairosdb,george-aprozeanu/kairosdb,kairosdb/kairosdb,lgscofield/kairosdb,deejay1/kairosdb,pawellesniewski/kairosdb,pawellesniewski/kairosdb,wangtuanjie/kairosdb,panqingcui/kairosdb-1,at15/kairosdb-1,ppbizapps/kairosdb,pawellesniewski/kairosdb,lgscofield/kairosdb,kairosdb/kairosdb,at15/kairosdb-1,wangtuanjie/kairosdb,deejay1/kairosdb,pawellesniewski/kairosdb,panqingcui/kairosdb-1,ppbizapps/kairosdb,panqingcui/kairosdb-1,ppbizapps/kairosdb,kairosdb/kairosdb,at15/kairosdb-1