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.