Xarchiver branch

[Jani Monoses]

> Mem-usage with a tar archive containing 250.000 files.
> 
> fileroller: 134.736 KB
> xarchiver: 81.540 KB

nice :)
> 
> A remaining problem is performance with archives containing large files...
> takes too long and xarchiver gui does not respond.

It's your call eventually but would it not be better to make it work for 
the common case first (where did you find an archive with 250K files?!),
get more testers on it (via thunar plugin too), then optimize? Well 
unless optimizing affects the whole design and source code of xarchiver.

Jani