add count data in http
use script in redis
add mput
add object number of a set in http Data Count
add data monitor
Merge remote-tracking branch 'origin/zhaoyang' into macan_test, OK
change data monitor to support different users visit simultaneously
add msg consuer for metadata backup
Minor updates for MetaStoreClient/MM; html info;
Merge remote-tracking branch 'origin/zhaoyang' into macan_test, OK
Update Monitor Service.