Bug#467069: pango1.0: biarch support

[Javier Serrano Polo]

It works and I can repackage it easily now. There are two lintian
warnings, but I think they're false positives.
I think future enhancements deserve their own bug. If you agree I'll
close this one.
I wonder however why the path is /usr/lib/host-type instead
of /usr/share/host-type since all architectures should be able to handle
the same files.