增加cobar配置

@@ -13,6 +13,8 @@ datasources:
         - ${jdbc.mysql.yhmessage.slave}
       username: ${jdbc.mysql.yhmessage.username}
       password: ${jdbc.mysql.yhmessage.password}
+      cobar: true
+      clusterName: platform
       maxConnections: 30
       daos:
         - com.yoho.message.dal.InBoxMapper