Add support for StuffIt X methods 7 and 34

[ci-macpaw]

Originally reported on Google Code with ID 444

hackingtales:

I just bought the new The Archive Browser and decided to open some SITX files I had
and I couldn't do it to any of them. When I try to open one of them that screen shows:

http://i.imgur.com/rxxAT.png

It shows that error but still opens the file but doesn't show everything inside, only
part of it.

When I try to open the second file, also SITX, it crashes the app.

Give me an email address and I will send the link to download the files, if you want,
but I won't post it in here for everyone.

Thanks

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* *Attachment: Captura de Tela 2012-03-21 às 08.59.45.png
*

[ci-macpaw]

lexushka:

Same issue
Pls fix ASAP
I am very need this feature

[ci-macpaw]

paracelsus:

You can send it to [email protected].

Unfortunately, sitx support is not complete, and some files will probably never be
supported because reverse-engineering all the more obscure parts of the format would
take too much work. However, I will at least look at any files sent to see if they
can be supported somewhat easily.