abstract AbstractTachyonFS and AbstractTAchyonFSCore
further cleanup TachyonFS, done new createFile
new delete
Merge branch 'master' of github.com:amplab/tachyon
Tweak documents
tweak documents
new rename, mkdirs, getFileStatus
fix unit tests
remove the user_outOfMemoryForPinFile to master
remove getFileId
remove getFileLength from TachyonFS
remove listFiles recursively in the tachyonFS
remove user_ls and user_getNumberOfFiles from master service
Merge branch 'master' of github.com:amplab/tachyon
tweak tachyonfs