init
add lab2 files
add test-lab-2-a test-lab2-b
change some structures
change some comments
refine comments
change GNUMakefile
my solution to lab1
Merge branch 'lab1' into lab2

Conflicts:
	GNUmakefile
	extent_client.cc
	extent_client.h
	yfs_client.cc
change start.sh (from lab1 to lab2)
fix 'argc == 2' -> 'argc == 4' in fuse.cc
aha? half-over for the update of start.sh
Merge branch 'lab2' of git://ipads.se.sjtu.edu.cn/cfs into lab2

update of start.sh
seems that something is left
why rpctest fails?
almost same with previous one
new lab3
new lab3
my solution to lab2
Merge branch 'lab2' into lab3

This must merge!