Support For .xz Attachments Added

[Varti]

Due to request, .xz compressed archives (and .tar.xz ones too) can be now used for attachments. For those who don't know, the xz format is used for packages distribution, and since a couple of years it is the default compressed file format for distributing kernel archive file: https://en.wikipedia.org/wiki/Xz

Varti

[greguu]

Due to request, .xz compressed archives (and .tar.xz ones too) can be now used for attachments. For those who don't know, the xz format is used for packages distribution, and since a couple of years it is the default compressed file format for distributing kernel archive file: https://en.wikipedia.org/wiki/Xz

Varti

Great, thanks Varti. This makes it possibly to attach ArchLinuxARM packages to posts!