#32 Please add multi-arch paths to virtuoso's search paths

[Lisandro D. N. Pérez Meyer]

Hi! I'm attaching a patch to add Multi-Arch aware paths to the serach paths used to find virtuoso's plugins.

We in Debian are wanting to do a M-A installation of Virtuoso, and so Soprano would need this patch.

Of course, feel free to ask for changes/more info if needed.