initialize git
finished get/put block server part. TODO:new/delete block
finish the new/free block on extent server. TODO: lock-client and extent-client
Finish lock client and extent client. TODO: the inode part that give abstraction of file
add new file for last commit
start writing the file manage layer
give the inode layout, write helper function
finish most of the data-block pointer management. TODO: write/read
finish the read/write. TODO: use cl-fuse
new file: yfs-client
Merge branch 'master' of https://github.com/a19990200130067/cl-yfs