Project4 start
indexed allocation
36 tests remain
36 tests success (syn-rw solved)
rw_lock added for syn-rw
Merge branch 'a_pj4' of github.com:ccelest/pintos into a_pj4
cache buffer function added
cache error
cache file seperated
??
cache added
Merge branch 'a_pj4' into b_pj4

Conflicts:
	src/filesys/cache.h
	src/filesys/inode.c
	src/filesys/inode.h
	src/userprog/syscall.c
28 tests remain