Ark: Add support for Lzip compression #1

The author of the Lzip compression program is interested in adding Lzip support to the Ark in TDE. For this reason he has prepared a patch. With slight modifications, there is a patch for testing and comments.

I will test in the weekend.

The patch causes problems with existing .tar.lzma archives.

Ark is unable to open and extract such files since by default it will now try to use lzip instead of lzma for that.

Need some more work to support both lzma and lzip formats. It is ok to use lzip as default format instead of lzma, but existing archives must be extractable and it must be possible to compress as .tar.lzma if the user really want to use such algorithm.

I will work on this.

Latest commit fixed problem with existing .tar.lzma archives.

Requires tdelibs up to commit 6bbc2b45 to work fine.

Changes to konqueror Ark plugin are also required to fix right click popup menu.

Okay, it looks good, we can go ahead.

Merged and pushed upstream. Thanks Antonio for the initial commit.

By the way, this is only for R14.1 series, being a new feature and changing the default format used for .tlz in TDE.