#1 fix chmod behavior

[Yuuki NINOMIYA]

Fixed chmod issues when new directories are created.
Also corrected files with suid bits set. If a file has
a suid bit set, the chmod was undone because the chown
function came after the chmod which removed the suid bit.

Added chmod function to the end of directory creation
to make sure new directories has proper permission.
With the current version, the permission would be set
correctly after you ran cpbk twice. The first would
create the directory, the second run would fix the
permission.

[Yuuki NINOMIYA]