Re-organize entries in changes.txt
Update grub4dos to 0.4.5c-2014-01-17.
(cherry-picked from b4934aa9688664409655c7df31e5093d9b09d1ac)
Conflicts:
	.git_cache_meta
Update cpustress-helpinfo.png
Correction to .git_cache_meta
Update changes.txt
Ignore xz archives in .gitignore