This update fixes several minor issues in drakxtools:
- it fixes management of XEN kernels in bootloader-config, when adding
a new kernel, a xen entry should not replace an existing 'linux'
(#40865)
- it fixes a crash in rpmdrake when description begins by
Gtk2::.. (#43802)

It also really enable draksnapashot to use Gtk+-2's new
FileChooserDialog in future.