* Update unrar to 4.2.4
* Update build to the latest standards

	modified:   utilities/unrar/unrar.build
* Add arj 3.10.22. This replaces unarj.

	new file:   utilities/arj/arj-3.10.22-001_archesalign.patch.xz
	new file:   utilities/arj/arj-3.10.22-002_noremovestaticconst.patch.xz
	new file:   utilities/arj/arj-3.10.22-003_64bitclean.patch.xz
	new file:   utilities/arj/arj-3.10.22-004_parallelbuild.patch.xz
	new file:   utilities/arj/arj-3.10.22-005_gnubuildfix.patch.xz
	new file:   utilities/arj/arj-3.10.22-autogen.patch.xz
	new file:   utilities/arj/arj-3.10.22-customprintf.patch.xz
	new file:   utilities/arj/arj-3.10.22-doc.patch.xz
	new file:   utilities/arj/arj-3.10.22-unarj.patch.xz
	new file:   utilities/arj/arj-3.10.22-usesafestrcpy.patch.xz
	new file:   utilities/arj/arj-3.10.22-usesystemstrnlen.patch.xz
	new file:   utilities/arj/arj.build