changed the obsolete script invocation of  "restart-failed-workers.sh"
make both the temp folder and new blocks writable to the worker and the client
Merge branch 'amplab'
consolidate clear-cache, format, and gen
consolidate killall script
Added cat, count, lsr, tail, and touch to command line
Fix formatting
consolidate copy-dir.sh
use system.out directly
Close UnderFS when Master ends
Merge branch 'master' of https://github.com/amplab/tachyon
merge master
Hot Master failover
update to master
fix formatting
Merge pull request #66 from calvinjia/master

HDFS commands
remove unnecessary code
formatting
format the code style, use the File.setPosixFIlePermissions to change file permissions
update license
format script