server.c: Make handle_unlink() check whether directory is empty before unlinking
mfs.c: Fix return values of MFS_Stat(), MFS_Write(), MFS_Read(), MFS_Creat(),
and MFS_Unlink()
server.c: Don't skip first two entries when looking up file in handle_lookup()
mfs.c: Fix return value of send_command()
server.c: Fix parent inum verification in handle_lookup() and handle_stat()
server.c: Make handle_stat() check if inode is allocated before proceeding
server.c: Correctly handle directory size
Makefile: Make target 'clean' delete libmfs.so