* use a single default configuration, share/isso.conf
* try to use config.new in some tests which are decoupled
A few tests now depend on `isso.dist` to show that they (or the used
objects) have too much dependencies and need to be rewritten.
Site links such as /?p=1234 are imported *as is* and maybe do work in
Isso. Do not use a query-based URL structure as permalinks. Ever.
Also, depending on the pages you are going to export, WXR' XML namespace
may change from ../export/1.0/ to ../export/1.2/. Isso tries to import
any WXR 1.x
Facundo Batista