Update grub4dos to 0.4.5c-2013-10-30.

(cherry picked from commit 9d02d062200dbc18b8358302ec135e925bd6cf70)

Conflicts:
	.git_cache_meta
Update ISOLINUX to 4.07.

(cherry picked from commit 7a1f37efab9735da5f2c5b87e8b0b47b78cbde43)
chmod 644 iso/boot/syslinux/*.c32

(cherry picked from commit f3d866ef316d337e7309fb2f2e0d94a9cae7a20a)
Update cpustress-helpinfo.png

Conflicts:
	.git_cache_meta
chmod 644 cpustress-systester.png

(cherry picked from commit 1451cb18fcc3c12b6f47b24a91a8ab899dbc33c5)
Update changes.txt