add the count stats of the filter files moudle ,called by -flc
add the  lutools.jar and alter the MetaStoreClient.java to support collect the filtered files' status
add -flc to MetaStoreClient.java.So it can collect the filtered files' status
add -flc to collect the status of the index directory
Add free space to info page.
Add read/write NR/ERR NR statistics.
Merge remote-tracking branch 'origin/mazhiyong' into macan_test, OK
Add statfs3 and LuceneStat for file recordnr, space collecting.
Fix dservice md5 computing bug; add browse to mm server; add disk/cpu system info.
Change and add file fetch to scrub; add net info collection.
Fix bad cd in ssh command.
Change and test host2ip convertion, passed.
Update MetaStoreClient for update_fmap; add verify_exist code to dservice;
Update dscan to dservice; fix client.stop() bug.
Merge remote-tracking branch 'origin/zhaoyang' into macan_test, OK
Scrub minor typos in MM/Dservice.
support more threads
Merge remote-tracking branch 'origin/macan' into zhaoyang