[xml] back level support

["Bart van Leeuwen" <Bart_van_Leeuwen netage nl>]

Hi all,

I'm currently compiling a program which was developed somewhere in 2003,
with probably version 2.5 of libxml2
I do have the latest 2.6.11 for compiling, the program has no version
checks, but its behaviour is a bit odd.
is there a chance that the version differences are causing my problems here
?
there might be other reasons as well for the behaviour, but I want to rule
out this one first.

With Regards
Bart van Leeuwen