added notification.enabled property
added notification.enabled property

ahb0327/yobi,yona-projects/yona,brainagenet/yobi,yona-projects/yona,Limseunghwan/oss,bloodybear/yona,bloodybear/yona,ChangsungKim/TestRepository01,Limseunghwan/oss,oolso/yobi,ihoneymon/yobi,doortts/fork-yobi,ahb0327/yobi,doortts/forked-for-history,naver/yobi,violetag/demo,brainagenet/yobi,naver/yobi,ChangsungKim/TestRepository01,naver/yobi,ahb0327/yobi,ihoneymon/yobi,bloodybear/yona,doortts/forked-for-history,doortts/fork-yobi,doortts/forked-for-history,yona-projects/yona,doortts/fork-yobi,oolso/yobi,doortts/fork-yobi,yona-projects/yona,bloodybear/yona,Limseunghwan/oss,brainagenet/yobi,ihoneymon/yobi,violetag/demo,oolso/yobi