* Update hplip to 3.12.11
* Update build to latest standards

	new file:   print/hplip/hplip-3.12.11-cups161fix.patch.xz
	new file:   print/hplip/hplip-3.12.11-desktopfile.patch.xz
	deleted:    print/hplip/hplip-3.12.6-slackware.patch.xz
	modified:   print/hplip/hplip.build